Most unusual in the world of the dungeon. Photo

Dungeons hide a lot of secrets.

Caves and dungeons have always been part of human life. We had thousands of reasons to dig them up. We do excavations to find the cultural values, digging mines for archaeological discoveries. We use underground caves for fun and shelters from natural and manmade disasters. We associate with tunnels continents, they are used for their dark deeds smugglers.

Today we will visit a variety of interesting underground worlds.

1. Near the town of Ingleton in England, at a depth of 100 meters is the biggest cave in Britain called Gaping Gill. In size it is comparable to that of York Cathedral (eng. York Minster) in the English city of York, who contested at the Cologne Cathedral the largest medieval Church in Northern Europe. (Photo Oli Scarff):

2. In Frankfurt on the river main, the construction of an underground tunnel under the river. That’s just pull down rig. (Photo By Boris Roessler):

3. How about underground Billiards in the underground bar at the Desert Cave in Australia? (Photo By Mark Kolbe):

4. The cemetery of Fontanelle — ossuary, arranged in natural caves at the foot of the hill Materdei, near Naples. The cemetery of Fontanelle — ossuary, arranged in natural caves at the foot of the hill Materdei, near Naples. (Photo By Cesare Abbate):

5. The canal Saint-Martin in Paris with a length of 4.55 km, dug in 1822-1826. for water supply of the Paris fountains and facilitate river navigation.From the Seine river channel runs along the border of the 4th and 12th districts, first as arsenalskoy pond, whose port can accommodate vessels up to 180, then to Bastille goes underground, leaving the surface close to Republic square, after the Stalingrad area. (Photo Miguel Medina):

6. The famous cave dwellers — bats in the cave in Mikulov.

Almost all bats are nocturnal and sleep during the day, or hanging upside down, or hiding in cracks of trees, rocks or in crevices in buildings. Shelters can serve as cavities in trees, caves, grottos and a variety of artificial structures, both above ground and underground. (Photo By Radek Mica):

7. Underground baths. Ocean trench, Sua can be found in the village of Lotofaga on the South coast of Upolu island in Samoa. The natural pool will have to go down to depths of 30 meters from poverkhnostyami. (Photo By Mark Kolbe):

8. Cave of Parastas (or “Blue cave”), so named for the seals that live inside. Considered one of the most beautiful caves of the Mediterranean, is quite capable to compete with the famous cave in Capri. To get it only on a small boat, and inside is a rich scattering of stalactites which cover the cave, reflecting the sun’s rays. (Photo By Alkis Konstantinidis | Reuters):

9. Puebla is one of the oldest cities in Mexico, founded about the year 1531. Under the city lies a network of ancient tunnels. (Photo By Joel Merino):

10. Underground bunker in Northern Ireland in the event of nuclear war. Its construction was completed in 1990. However, to fit here only 235 people. (Photo By Charles McQuillan):

11. Speaking of the dungeon, it is impossible not to look in the St. Petersburg subway. (Photo Cara Anna):

12. The first underground Park in new York. Residents can take refuge from the chaos of the city just beneath the streets of the Lower East side. This area of the Park has special mirrors that capture sunlight on the roof. It is then routed through a mirror system of pipes and is distributed through a network of special solar panels-sheds. (Photo Mary Altaffer):

13. Underground enterprises of the Third Reich was a measure that promotes the protection of critical for the war businesses from destruction at massive raids bombers of the allies. This is located near Wałbrzych, in South-Western Poland. (Photo By Kacper Pempel | Reuters):

14. Beautiful cave in Hebei province in Northern China. (Liu Huanyu Photo | Xinhua Press):

15. Underground metro Bangkok is officially known as the Metropolitan electric train. Here a worker inspects a tunnel under the Chao Phraya river on a metro Mass Rapid Transit in Bangkok, Thailand. (Photo By Athit Perawongmetha | Reuters):

16. A lot of salt. The salt mine in Philippsthal (Werra), Germany. (Photo By Thomas Lohnes):

17. Hid from the war. Family underground shelter in the suburbs of Aleppo. (Photo By Karam Al-Masri):

18. Almost as the lair of the Alien. The construction of the subway in Rennes, France. Rennes metro has been functioning since March 15, 2002 It is based on the technology of Siemens VAL and is fully automatic without drivers. (Photo Jean-Sebastien Evrard):

19. Another shot of the largest caves in Britain, Gaping Gill. (Photo Oli Scarff):

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