The Most Remarkable Rock Formations in Spain
5 places · updated 13 October 2026
In short: By our ranking, the most remarkable rock formations in Spain are Roque Nublo, Es Pontàs and Ciudad Encantada. The list covers 5 rock formations. Last updated 13 October 2026.
Spain's rocks are sculpted by very different forces within one country: volcanic eruptions in the Canaries, the sea along the Balearic cliffs, rain and frost on the limestone of the interior, and rivers cutting through Pyrenean conglomerate. Even mining has added a chapter, opening a crystal chamber that had been sealed for millions of years.
On Gran Canaria, Roque Nublo is a volcanic monolith about 80 metres tall standing near the island's summit, a landmark visible from much of the island. Off the southeast coast of Mallorca, Es Pontàs is a slender sea arch, famous among climbers for a hard route climbed above deep water without ropes. In the hills of Cuenca, the Ciudad Encantada is an enchanted city of limestone blocks worn into mushrooms, arches and animal shapes. In Aragon, the Mallos de Riglos are towers of rounded conglomerate rising up to about 300 metres above the village, home to colonies of griffon vultures. Near Almería, the Pulpí Geode, found in 1999 in an old silver mine, is a hollow lined with transparent gypsum crystals up to two metres long, one of the largest geodes known.
In this list
| # | Place | Type | UNESCO |
|---|---|---|---|
| 1 | Roque Nublo | Rock formation | |
| 2 | Es Pontàs | Natural arch | |
| 3 | Ciudad Encantada | Rock formation | |
| 4 | Mallos de Riglos | Rock formation | |
| 5 | Pulpí Geode | Rock formation |
01 Roque Nublo
Spain · 23 km from Las Palmas de Gran Canaria27.971° N 15.613° W
Image by WunschbrunnenEla from Pixabay The name means something like "clouded rock", and the trade-wind clouds often do pour over the central ridges below it. On clear evenings the plateau looks west across the sea to the cone of Teide on Tenerife, and down into the ravines of the Nublo Rural Park. The rock was protected as a natural space in 1987 and declared a Natural Monument in 1994; the monument covers about 450 hectares within the wider rural park, in the municipality of Tejeda.
Did you know? It is the island's third-highest point, after Morro de la Agujereada at 1,956 metres and Pico de las Nieves at 1,949 metres.
02 Es Pontàs
Spain39.326° N 3.145° E
KANO PHOTO · CC BY-SA 2.0 Es Pontàs also holds a special place in the history of climbing. In 2006 the American climber Chris Sharma made the first ascent of a route up the underside of the arch — climbing without ropes above deep water, the style known as deep-water soloing, where the sea is the only protection against a fall. He named the route Es Pontàs; never formally graded, but widely put at around 9a+, it was the first deep-water solo at that level of difficulty, at the time among a handful of the hardest climbs on Earth of any kind; a year earlier he had already opened a hard line here called Pontax.
Did you know? The 20-metre route follows the arch from its base right up to its apex, hanging steeply overhead almost the whole way.
03 Ciudad Encantada
Spain40.206° N 2.007° W
Xauxa Håkan Svensson · CC BY-SA 3.0 The site was declared a Natural Site of National Interest on 11 June 1929, and it now forms part of the Serranía de Cuenca Natural Park, created in 2007. A marked trail of about 3 km links the most famous formations, whose names include the Ships, the Seal, the Toboggan, the Roman Bridge, the Sea of Stone, the Elephant and Crocodile, the Theatre and the Lovers of Teruel. Local tradition holds that the Tormo Alto was the place where the Lusitanian leader Viriathus was cremated. Federico García Lorca dedicated a sonnet to the Enchanted City in 1935.
Did you know? Seventeen rock formations along the route carry names, including the Dog, the Turtle, the Bears, the Convent and Ariadne's Face.
04 Mallos de Riglos
Spain42.351° N 0.724° W
Image by solercollell from Pixabay Nineteenth-century travellers and writers, among them Santiago Ramón y Cajal, already marvelled at these rocks, and in the twentieth century they became one of the great proving grounds of Spanish climbing. The Puro defeated several attempts, two of them fatal, before Manuel Bescós, Alberto Rabadá and Ángel López "Cintero" reached its top in 1953; Rabadá and Ernesto Navarro went on to open some of the most celebrated lines on the walls. In 2016 the Mallos de Riglos, together with the neighbouring Mallos de Agüero and Peña Rueba, were declared a natural monument.
Did you know? Several small towers once had vegetable nicknames: the Aguja Roja was 'the beet' and the Gómez Laguna tower was 'the pepper'.
05 Pulpí Geode
Geoda de Pulpí
Spain · 34.1 km from Lorca37.382° N 1.702° W
Geoda Pulpí · CC BY-SA 4.0 Research into the crystals' origin points to slow growth from fresh groundwater in a flooded cavity during the Upper Pleistocene, between roughly 164,000 and 60,000 years ago. The crystals grew undisturbed into the open space of the cavity, which stayed sealed in the rock until the collectors broke into it. The abandoned mine is now a site of geoheritage and geotourism, where the geode can be seen in the place where it formed, deep inside the hill.
Did you know? Mining in the Sierra del Aguilón began around 1840 with silver, and iron extraction from 1870 made it a prosperous district until the Spanish Civil War.
How this list is ranked
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.
Questions people ask
- What are the most remarkable rock formations in Spain?
- On our list, Roque Nublo ranks first, followed by Es Pontàs and Ciudad Encantada.
- What is the Pulpí Geode?
- A large cavity inside an old mine in Pulpí, Almería, lined with giant crystals of clear gypsum, some nearly two metres long. Discovered by mineralogists in 1999, it is one of the largest geodes known in the world.
- How was the Ciudad Encantada formed?
- Rain, frost and running water dissolved and wore away softer layers of the Cretaceous limestone at different rates, leaving blocks shaped like mushrooms, bridges and animals.
- How many rock formations are on this list in Spain?
- The list covers 5 rock formations.