Boca do Inferno is a chasm located in the seaside cliffs close to the Portuguese city of Cascais, in the District of Lisbon.
Grjótagjá is a small lava cave near lake Mývatn in Iceland. It has a thermal spring inside.
The Ear of Dionysius is a limestone cave carved out of the Temenites hill in the city of Syracuse, on the island of Sicily in Italy.
Located near the town of Thorlakshofn, this lava tube is often decorated with ice, thanks to the cold air that gets trapped in here.
The Wawel Dragon, also known as the Dragon of Wawel Hill, is a famous dragon in Polish legend.
Postojna Cave is a 24.34 km long karst cave system near Postojna, southwestern Slovenia.
The Caves of Drach are four great caves that are located in the island of Majorca, Balearic Islands, Spain, extending to a depth of 25 m…
Nested in a 123-meter-high rocky cliff, this is probably the most haunted castle in Slovenia – beautiful during the day and absolutely…
Cueva de los Verdes is a lava tube and tourist attraction of the Haria municipality on the island of Lanzarote in the Canary Islands.
Neptune's Grotto is a stalactite cave near the town of Alghero on the island of Sardinia, Italy.
Visiting this cave is like entering another world - a sphere of unbelievable stone formations, crystals, lights and shadows. Breath-taking!
From almost 200 cities spread across the entire region, this fascinating underground city from the 7th century BC is the deepest one in…
The Caves of Nerja are a series of caverns close to the town of Nerja in the Province of Málaga, Spain.
Psychro Cave is an ancient Minoan sacred cave in Lasithi plateau in the Lasithi district of eastern Crete.
The Castellana Caves are a karst cave system located in the municipality of Castellana Grotte, in the Metropolitan City of Bari, Apulia,…
The São Vicente Caves are caves located in the parish and county of São Vicente, Madeira.
19 kilometres of caves and tunnels full of spectacular stalagmites and other structures carved by the thermal waters.
This mysterious place is entwined with legends about the Visigoth king Rodrigo, who received a prophecy about the end of his kingdom here.
Ihlara, formerly known as Chliára is a town and municipality in the Güzelyurt District, Aksaray Province, Turkey. The population is 2,289.
The Gruta do Carvão is an ancient lava tube located on the outskirts of the municipality of Ponta Delgada on the island of São Miguel in…
