5 places in 4 countries · updated 13 October 2026
In short: By our ranking, the most beautiful botanical gardens in Europe are Jardín de Cactus (Spain), Keukenhof (Kingdom of the Netherlands) and Eden Project (United Kingdom). The list covers 5 botanical gardens in 4 countries. The United Kingdom has the most, with 2. Last updated 13 October 2026.
Europe invented the botanical garden as a scientific institution, first as physic gardens for medicine and later as living catalogues of a globe its explorers were mapping. That tradition left great glasshouses of iron and glass, while modern designers have added gardens made in old quarries and clay pits. The best combine serious collections with architecture and landscape that are worth seeing in their own right.
On Lanzarote, the Jardín de Cactus, the last major work of the artist César Manrique, fills an old quarry with terraces of cacti in a volcanic amphitheatre beneath a windmill. Keukenhof in the Netherlands, a spring garden of tulips and other bulbs, blooms with millions of flowers planted each year. In Cornwall, the Eden Project grows rainforest and Mediterranean plants inside geodesic biomes set in a former china clay pit. Kew Gardens in London, a UNESCO site, holds one of the richest plant collections in the world and the Victorian Palm House. In Brussels, the Royal Greenhouses of Laeken, built for Leopold II, are a domed city of iron and glass.
In this list
| # | Place | Type | Country | UNESCO |
|---|---|---|---|---|
| 1 | Jardín de Cactus | Botanical garden | Spain | |
| 2 | Keukenhof | Botanical garden | Kingdom of the Netherlands | |
| 3 | Eden Project | Botanical garden | United Kingdom | |
| 4 | Kew Gardens | Botanical garden | United Kingdom | ✓ |
| 5 | Royal Greenhouses of Laeken | Botanical garden | Belgium |
Jardín de Cactus de Lanzarote
Spain · 13.7 km from Arrecife29.080° N 13.476° W

Manrique designed the garden as an amphitheatre. Terraces of dark volcanic stone step down into the old pit, and on them grow some 4,500 plants of about 450 species of cacti and other succulents, gathered from the deserts of the Americas, Madagascar and other dry regions of the world. Against the black ground, their shapes and shades of green, grey and silver read almost like a living sculpture garden, which is how Manrique conceived it, and the paths, walls, stairways and pools are integrated into the setting with the same care for local materials that runs through all of his projects.
Did you know? Guatiza sits among fields of prickly pears long farmed for cochineal, the insect that yields carmine dye, which is why Manrique chose cacti for the garden.
Kingdom of the Netherlands · 13.6 km from Haarlem52.269° N 4.547° E

The ground has a long past. In the fifteenth century it belonged to the hunting grounds of Countess Jacoba of Bavaria, and its herb and vegetable plots supplied her castle kitchen, which is what the name Keukenhof, "kitchen garden", recalls. In 1641 a country house was built on the estate, and in 1857 its owners, the Van Pallandt family, brought in the landscape architects Jan David Zocher and his son Louis Paul Zocher, whose English-style layout of winding paths, water and mature trees still frames the flowers.
Did you know? The 1641 manor house on the estate was built by Adriaen Maertensz Block, a captain and governor in the Dutch East India Company.
United Kingdom50.362° N 4.745° W

The pit had been worked for clay for more than 160 years and was close to exhausted by the mid-1990s; in 1981 it had even stood in for the surface of the planet Magrathea in the BBC's television version of The Hitchhiker's Guide to the Galaxy. The idea of turning it into a showcase of the world's plants came from Tim Smit and Jonathan Ball in 1996. Grimshaw Architects designed the complex with the structural engineers Anthony Hunt Associates, and building started in 1998, slowed at first by heavy rain that flooded parts of a site lying about 15 metres below the water table. A visitor centre opened in 2000 and the full project on 17 March 2001.
Did you know? The biomes are completely self-supporting, with no internal columns, and their cladding is cleaned by abseilers while punctures are mended with ETFE tape.
United Kingdom · 12.4 km from London51.479° N 0.294° W

The great glasshouses are the heart of any visit. The Palm House, built between 1844 and 1848 by the architect Decimus Burton and the ironmaster Richard Turner, is considered the world's most important surviving Victorian glass-and-iron structure. A gallery 9 m up lets you walk among the tops of the palms. The Temperate House, also by Burton, has twice the floor area and is the largest Victorian glasshouse still standing. The Princess of Wales Conservatory of 1987 contains ten climate zones under one roof, from desert cacti to orchids and carnivorous plants, and the small Waterlily House grows giant Victoria waterlilies in summer.
Did you know? The world's smallest waterlily, Nymphaea thermarum, was saved from extinction in 2009 when Kew horticulturists managed to grow it from seed.
Koninklijke Serres van Laken
Belgium · 6.2 km from Brussels50.888° N 4.360° E

The complex was the project of King Leopold II, who had seen the Crystal Palace in London and wanted something equally modern in his own garden: a place for plants, but also for receptions, performances and dinners. After rejecting a design by the botanist Jean Linden as too modest, he turned to the architect Alphonse Balat, working closely with him over years of sketches and letters. Construction began in 1874 and continued in phases until 1905; after Balat's death in 1895 the work was taken over by Henri Maquet and Charles Girault. The buildings also carried a political message.
Did you know? After Leopold's death in 1909, the domed Iron Church, built as a royal chapel, was turned into a private royal bathing house.
Places are chosen for how they look, not for how famous they are: each one has its own description and a photograph credited to its author. The order is a single world ranking that weighs the beauty of the place in curated photography together with how widely it is documented — the number of language editions of its encyclopedia article and how often that article is read in a year. The list is rebuilt as places are added, so the order and the counts on this page are always current.