The Greatest Engineering Wonders in Asia

47 places in 16 countries · updated 13 October 2026

1. 01 The Helix Bridge

   Singapore · 1.1 km from Singapore1.288° N 103.861° E

   

   The design came from an international team: the Australian practice Cox Architecture with the engineers Arup, working together with the Singapore firm Architects 61. Construction began in 2007, and the steelwork took roughly 650 tonnes of duplex stainless steel, plus around 1,000 tonnes of carbon steel used for a temporary truss that held everything in place while the helices were welded together.

   Did you know? In April 2010 only half of the bridge could open, because Marina Bay Sands at its southern end was still under construction.

   More about The Helix Bridge →

2. 02 Wings of Tatev

   Armenia · 25.9 km from Kapan39.416° N 46.297° E

   

   The ride takes some 11 to 15 minutes, against around forty minutes on the steep serpentine road that winds down into the gorge and up again. 7 km, is also the most spectacular: the cabin glides out over the void with the monastery in full view, a cluster of stone churches and walls standing on a basalt plateau at the very edge of the abyss.

   Did you know? The monastery's Gavazan is a 9th-century stone column about 8 metres tall built on a hinged base, so that it rocks during tremors without falling.

   More about Wings of Tatev →

3. 03 Rani ki Vav

   India23.859° N 72.102° E

   

   It is attributed to Udayamati, the queen of the eleventh-century Chaulukya king Bhima I. A medieval chronicle places its commissioning in 1063 and says it took about twenty years to complete, though scholars disagree about the dates. Architecturally it belongs to the Maru-Gurjara style, built on an interlocking system of pillars, brackets and beams — 212 pillars in all.

   Did you know? The stepwell creates its own microclimate: warm air cools against the stone and water, keeping the lower levels cool and slowing evaporation.

   More about Rani ki Vav →

4. 04 Jantar Mantar

   India · 1.7 km from Jaipur26.925° N 75.825° E

   • UNESCO World Heritage

   

   Jai Singh built it because the astronomical tables in use in his day did not match what he saw in the sky. He founded five observatories in different cities to produce better tables, and Jaipur became his principal one; in the mid-1730s at least 23 astronomers worked here. The resulting tables were used in India for about a century.

   Did you know? The Nadi Valaya Yantra has two dial faces, one representing the northern celestial hemisphere and one the southern.

   More about Jantar Mantar →

5. 05 Mir diamond mine

   Russia · 2 km from Mirny62.526° N 113.984° E

   

   The diamond-bearing kimberlite pipe was found on 13 June 1955 by geologists of the Amakinsky Expedition, Yuri Khabardin, Ekaterina Elagina and Viktor Avdeenko, after years of fruitless expeditions. Their coded radio message has become legendary: "We have lit the pipe of peace, the tobacco is good." Mir means peace, and the pipe was only the second kimberlite deposit discovered in the Soviet Union. Khabardin received the Lenin Prize in 1957.

   Did you know? The underground mine started work in 2009 and was designed to handle about one million tonnes of ore a year.

   More about Mir diamond mine →

6. 06 Five-hundred-meter Aperture Spherical Telescope

   People's Republic of China25.653° N 106.857° E

   

   FAST is operated by the National Astronomical Observatories of the Chinese Academy of Sciences. The idea was championed for more than two decades by the astronomer Nan Rendong, who searched southern China for a suitable limestone sinkhole and led the project until his death in 2017. Construction was completed and the telescope began commissioning on 25 September 2016; formal operations started in January 2020 after years of testing.

   Did you know? Its first two discoveries, announced in 2017, were pulsars lying about 16,000 and 4,100 light years from Earth.

   More about Five-hundred-meter Aperture Spherical Telescope →

7. 07 Kalka–Shimla Railway

   India · 0.8 km from Shimla31.105° N 77.173° E

   • UNESCO World Heritage

   

   The line was built because twice a year the entire government had to move between Calcutta and Shimla by horse and ox-drawn carts. Once the broad-gauge line from Delhi reached Kalka in 1891, a hill railway became possible.

   Did you know? The ruling gradient is 1 in 33, steep enough that the line had once been considered for a rack railway.

   More about Kalka–Shimla Railway →

8. 08 Khaju Bridge

   Iran · 7.4 km from Isfahan32.637° N 51.683° E

   

   The bridge has two storeys of arcades. The upper level carries the roadway between arched galleries; below it, a lower arcade opens onto the water, and steps lead down to shaded passages right beside the river.

   Did you know? The Swiss writer and photographer Annemarie Schwarzenbach photographed the bridge in 1933.

   More about Khaju Bridge →

9. 09 Kintai Bridge

   Japan · 34.5 km from Hiroshima34.168° N 132.178° E

   

   The bridge was first completed in 1673 and was swept away by a flood the very next year. The remedy was not in the arches but beneath them: the stone piers were strengthened and the riverbed around them paved with great stones so that floodwater could not scour the sand from under their feet. After that the bridge stood for 276 years, maintained by a special tax and rebuilt in sections on a fixed cycle.

   Did you know? Exposed timbers are sheathed in copper plates to shed rain, a detail that helps the wooden structure survive between rebuilds.

   More about Kintai Bridge →

10. 10 Maiden's Tower

    Kız Kulesi

    Turkey · 2.5 km from Istanbul41.021° N 29.004° E

    

    The present building is Ottoman. After the conquest of 1453 the tower served as a watchpost; it was damaged by the great earthquake of 1509 and by fire in 1721, rebuilt in stone in 1763, and restored under Sultan Mahmud II in 1832. Over the centuries it served as a lighthouse and a quarantine station.

    Did you know? After the fire of 1721, the grand vizier Damat Ibrahim Pasha ordered it rebuilt, and the new building was put to work as a lighthouse.

    More about Maiden's Tower →

11. 11 Dragon River Bridge

    Vietnam · 2.5 km from Da Nang16.061° N 108.227° E

    

    Opened on 29 March 2013, the 38th anniversary of the day Da Nang came under North Vietnamese control, the design draws on the dragon imagery associated with Vietnam's Lý dynasty, and doubles as a genuinely practical piece of infrastructure — it's the direct route linking Da Nang's airport to the city's beachfront, meaning tourists headed for the coast typically cross a fire-breathing sculpture without planning to see one at all.

    Did you know? Work began on 19 July 2009, the same day the nearby Thuận Phước suspension bridge across the Han River was inaugurated.

    More about Dragon River Bridge →

12. 12 Aqueduct of Valens

    Bozdoğan Kemeri

    Turkey · 1.6 km from Istanbul41.016° N 28.956° E

    

    It was the final and most visible piece of an enormous water system. Work began under Constantius II and the aqueduct was completed under the Emperor Valens, whose name it bears, with its inauguration recorded in 373.

    Did you know? The bridge keeps a steady gradient of about one metre in every kilometre, enough to keep the water flowing gently into the city.

    More about Aqueduct of Valens →

13. 13 Darjeeling Himalayan Railway

    India · 37.1 km from Ilam27.045° N 88.267° E

    • UNESCO World Heritage

    

    The line gains height with ingenuity rather than power. Where the slope was too steep, the engineers built loops, on which the track circles and crosses over itself, and zig-zags, where the train runs forward, reverses up a spur, then runs forward again. Today there are six zig-zags and three loops.

    Did you know? The line originally had five loops; damage and realignments over the years reduced them to the three in use today.

    More about Darjeeling Himalayan Railway →

14. 14 Chengyang Yongji Bridge

    People's Republic of China25.900° N 109.638° E

    

    4 metres wide, standing about 10 metres above the water on three massive stone piers. Everything above the piers is wood, and the carpentry is the marvel: the structure is held together by mortise-and-tenon joints without a single nail or iron fitting.

    Did you know? The main beams are made of fir logs laid in two layers of seven, on which the gallery, pillars and tiled roofs are raised.

    More about Chengyang Yongji Bridge →

15. 15 Kuwait Towers

    Kuwait · 3.3 km from Kuwait City29.390° N 48.003° E

    

    The tallest tower rises 187 metres and carries two spheres. The lower one holds a water tank of about 4,500 cubic metres together with a restaurant, café, lounge and reception hall; the upper one, at 123 metres, is an observation sphere with a café that makes a full turn every 30 minutes, so the view sweeps slowly across the city and the Gulf.

    Did you know? The towers were built by a construction company from Belgrade, in what was then Yugoslavia, under contract to the Swedish engineers.

    More about Kuwait Towers →

16. 16 Ngong Ping 360

    People's Republic of China · 29.5 km from Hong Kong22.256° N 113.902° E

    

    The line was designed by the architects Aedas and built by Leitner Ropeways, and it is owned and run by the MTR Corporation, Hong Kong's rail operator. Its route is more ambitious than a simple climb.

    Did you know? Until April 2005 the project was known simply as the Tung Chung Cable Car Project, before it was rebranded as Ngong Ping 360.

    More about Ngong Ping 360 →

17. 17 Nilgiri Mountain Railway

    India11.344° N 76.792° E

    • UNESCO World Heritage

    

    The line was a long time in the making. It reached Coonoor from Mettupalayam in June 1899 and was extended to Udhagamandalam, the old hill station of Ooty, on 15 October 1908. In 2005 UNESCO added it to the Mountain Railways of India World Heritage Site. The rack section is still worked by X class steam locomotives, a design built largely in Switzerland by the Swiss Locomotive and Machine Works.

    Did you know? Although the rack section averages about 1 in 24.5, at Kallar the train leaves the station straight onto a gradient of 1 in 12.

    More about Nilgiri Mountain Railway →

18. 18 Golden Bridge (Bà Nà Hills)

    Vietnam · 28.1 km from Da Nang15.995° N 107.996° E

    

    It was designed by TA Landscape Architecture, a Ho Chi Minh City practice, with Vu Viet Anh as principal designer and Trần Quang Hùng as bridge designer, for the resort developer Sun Group. The designers described the idea as a strip of gold drawn out of the mountain by the hands of the gods, and it took them months to convince the client.

    Did you know? Purple chrysanthemums line each of the bridge's eight spans, adding colour to the gilded walkway.

    More about Golden Bridge (Bà Nà Hills) →

19. 19 Adalaj Stepwell

    India · 8.7 km from Gandhinagar23.167° N 72.580° E

    

    The well was begun under Rana Veer Singh of the Vaghela dynasty and finished by Mahmud Begada, the sultan of Gujarat who had defeated him; a Sanskrit inscription on the site dates the work to 1499 and credits Veer Singh's widow, Rani Rudabai, as its patron. That double parentage is visible in the stone.

    Did you know? A small frieze of the Navagraha, the nine celestial bodies of Hindu astronomy, was traditionally believed to shield the monument from bad luck.

    More about Adalaj Stepwell →

20. 20 Kurobe Dam

    Japan36.566° N 137.662° E

    

    The hardest part was getting in. 4 km under Mount Akazawa from the Ōmachi side, and its builders ran into a fractured, water-bearing zone that took seven months to cross. That struggle became a novel and the 1968 film The Sands of Kurobe.

    Did you know? The project prompted Japan's first 275-kilovolt transmission system, which allowed electricity to be sent over greater distances.

    More about Kurobe Dam →

21. 21 Si-o-se Pol

    Iran · 6.9 km from Isfahan32.645° N 51.668° E

    

    It was built between 1599 and 1602, under Shah Abbas I, the ruler who made Isfahan the capital of Safavid Iran and reshaped it with avenues, gardens and monumental squares. The work was overseen by Allahverdi Khan Undiladze, a commander of Georgian origin who led the shah's armies, and the bridge is also known by his name. 6 metres, so the effect comes from rhythm and repetition rather than from any single daring arch.

    Did you know? The bridge appears on the reverse of an Iranian 200-rial banknote issued in 1951.

    More about Si-o-se Pol →

22. 22 Shushtar Historical Hydraulic System

    Iran32.054° N 48.849° E

    

    The system grew over a long period. Its beginnings are attributed to the Achaemenid era and the reign of Darius the Great, but most of it took shape under the Sasanian kings, who turned Shushtar into a carefully managed oasis on the edge of the Khuzestan plain.

    Did you know? Its builders used sandstone blocks around a core of Roman concrete, binding the stones with mortar and iron clamps.

    More about Shushtar Historical Hydraulic System →

23. 23 Khewra Salt Mine

    Pakistan32.653° N 73.010° E

    

    Local legend dates the discovery of the salt to the passage of Alexander the Great's army in the fourth century BC, when horses were seen licking the rocks and recovered from their sickness. Whatever the truth of the story, salt has been dug here for a very long time, and the mine still produces hundreds of thousands of tonnes a year. Its modern layout owes much to the mining engineer H.

    Did you know? The Assembly Hall chamber rises about 75 metres, and the pillarless salt bridge of Pul-e-Sarat spans a brine pool some 25 metres deep.

    More about Khewra Salt Mine →

24. 24 Chand Baori

    India27.007° N 76.606° E

    

    Stepwells were the answer of dry western India to a hard problem — how to reach water whose level swung wildly between monsoon and drought. Rather than lower a bucket, you walked down to it, and the deep shaded well also stayed several degrees cooler than the air above, making it a place to gather in summer heat.

    Did you know? Besides The Fall, the well has served as a location for Indian films including Paheli, Bhool Bhulaiyaa and Bhoomi.

    More about Chand Baori →

25. 25 Japanese Bridge

    Vietnam · 21.8 km from Da Nang15.877° N 108.326° E

    

    The bridge is about 18 metres long and 3 wide, carried on brick piers, with a timber frame beneath three linked roofs covered in yin-yang tiles.

    Did you know? Each year, on the 20th day of the seventh lunar month, a festival is held in honour of Trấn Vũ, the deity worshipped in the bridge temple.

    More about Japanese Bridge →

26. 26 U Bein Bridge

    Myanmar · 9.3 km from Mandalay21.892° N 96.057° E

    

    The bridge went up between 1849 and 1851 and takes its name from Maung Bein, the official who had it built. Its timber came secondhand, salvaged from the former royal palace at Inwa – so the posts that hold up today's footway once stood in a king's residence. The original structure rested on 984 teak posts; with the approach sections and pavilions the count has risen to 1,086, and each post carries a number in Burmese numerals.

    Did you know? Its two original approach sections were built of brick and were later replaced by wooden approaches, raising the post count beyond the original 984.

    More about U Bein Bridge →

27. 27 Peak Tram

    People's Republic of China · 4.8 km from Hong Kong22.272° N 114.155° E

    

    The idea came from Alexander Findlay Smith, an entrepreneur who had studied mountain railways in Europe and America and saw how such a line could open up the slopes of the Peak. Work began in 1885; on its first day the line carried 800 people, and some 150,000 in its first year. For almost four decades a static steam engine drove the haulage cable, until an electric motor replaced it in 1926.

    Did you know? Unusually for a funicular, the 1956 generation came with three cars, two in service and one kept spare in a shed near Kennedy Road.

    More about Peak Tram →

28. 28 Norias of Hama

    Syria · 2.7 km from Hama35.135° N 36.753° E

    

    The wheels exist because the Orontes is sluggish and runs between high banks at Hama, so lifting water was the practical way to irrigate the gardens beyond. Norias were probably already working here by the late 12th century, and possibly far earlier: a mosaic from Apamea, 55 km downstream, shows a near-identical wheel around 350 CE.

    Did you know? To turn its heavy load, al-Muhammadiya is fed by an unusually long weir set at a sharp angle across the river, clearly visible from above.

    More about Norias of Hama →

29. 29 Langkawi Sky Bridge

    Malaysia6.386° N 99.662° E

    

    The mountain is the real treasure. The Machinchang ridge is built of sandstone and shale laid down in the Cambrian period, roughly 550 to 505 million years ago, the oldest sedimentary rocks in Malaysia and among the oldest in South-East Asia. They form the heart of the Machinchang Cambrian Geoforest Park, part of the Langkawi UNESCO Global Geopark.

    Did you know? After helicopters set the first central deck segment, it proved unstable, so the remaining fourteen segments were assembled by winch and cable instead.

    More about Langkawi Sky Bridge →

30. 30 Guoliang Tunnel

    People's Republic of China35.731° N 113.604° E

    

    The result is a gallery road cut along and through the cliff: a passage roughly 5 metres high and 4 metres wide, running for about 1.2–1.3 km through hard sedimentary sandstone. The roughly 26,000 cubic metres of rock removed were taken out by the villagers themselves, almost entirely by hand, which is what makes the road remarkable rather than its length.

    Did you know? Shen Mingxin first proposed carving the road in autumn 1971, and the first blows against the cliff were struck on 9 March 1972.

    More about Guoliang Tunnel →