There are 189 entries of Subterranean Sites in the Atlas

Luray, Virginia

The Great Stalacpipe Organ

An organ located deep within a cave and whose "pipes" are the geological features of the cave itself

Curious Caves, Musical Wonders, Subterranean Sites

21 Jan 2010

Vienna, Austria

Stephansdom Crypt

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons

Memento Mori, Catacombs, Crypts, & Cemeteries, Architectural Oddities, Curious Places of Worship

29 May 2010

Kasukabe, Japan

G-Cans: the World's Largest Drain

The world's largest drain sits below the city of Saitama, Japan

Subterranean Sites

09 Apr 2013

Wieliczka, Poland

Wieliczka Salt Mine

An underground city of salt

Wonders of Salt, Odd Accommodations, Long Now Locations, Curious Places of Worship

05 Jun 2012

Alghero, Italy

Neptune's Grotto

Stalactites and stalagmites in a beautifully lit cave

Geological Oddities, Curious Caves, Subterranean Sites

14 Jun 2012

Greater Sudbury, Canada

Sudbury Neutrino Observatory

A neutrino detector built into the largest man-made underground cavity in the world

Strange Science, Instruments of Science, Subterranean Sites

22 Oct 2009

Paris, France

Paris Sewer Museum

The curious underground history of keeping Paris clean

Unique Collections, Subterranean Sites

15 Jun 2010

Bochnia, Poland

Bochnia Salt Mine

Poland's oldest salt mine has nearly everything one needs to live underground forever

Wonders of Salt, Curious Places of Worship, Subterranean Sites

02 Nov 2009

Hallstatt, Austria

Salzwelten: The Hallstatt Salt Mine

The world's oldest known salt mine

Wonders of Salt, Subterranean Sites

11 Feb 2009

Hutchinson, Kansas

The Kansas Underground Salt Museum

The worlds oldest organism was reanimated within the salty walls of this mine

Fascinating Fauna, Wonders of Salt, Unique Collections, Long Now Locations

12 Feb 2009

Paris, France

Catacombes de Paris

The Catacombs hold secrets much stranger than the bones stacked within them

Memento Mori, Ossuaries, Catacombs, Crypts, & Cemeteries, Subterranean Sites

13 Feb 2009

Turin, Italy

Temple of Damanhur

Massive subterranean temple built in secret

Outsider Art, Curious Places of Worship, Outsider Architecture, Subterranean Sites

02 Oct 2012

There are 189 entries of Subterranean Sites in the Atlas

The Great Stalacpipe Organ

An organ located deep within a cave and whose "pipes" are the geological features of the cave itself

Stephansdom Crypt

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons

G-Cans: the World's Largest Drain

The world's largest drain sits below the city of Saitama, Japan

Wieliczka Salt Mine

An underground city of salt

Neptune's Grotto

Stalactites and stalagmites in a beautifully lit cave

Sudbury Neutrino Observatory

A neutrino detector built into the largest man-made underground cavity in the world

Paris Sewer Museum

The curious underground history of keeping Paris clean

Bochnia Salt Mine

Poland's oldest salt mine has nearly everything one needs to live underground forever

Salzwelten: The Hallstatt Salt Mine

The world's oldest known salt mine

The Kansas Underground Salt Museum

The worlds oldest organism was reanimated within the salty walls of this mine

Catacombes de Paris

The Catacombs hold secrets much stranger than the bones stacked within them

Temple of Damanhur

Massive subterranean temple built in secret

A Collection of
Curious Facts

This is what we believe:

Know a place that should be in the Atlas?

There are 189 entries of Subterranean Sites in the Atlas

An organ located deep within a cave and whose "pipes" are the geological features of the cave itself

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons

The world's largest drain sits below the city of Saitama, Japan

An underground city of salt

Stalactites and stalagmites in a beautifully lit cave

A neutrino detector built into the largest man-made underground cavity in the world

The curious underground history of keeping Paris clean

Poland's oldest salt mine has nearly everything one needs to live underground forever

The world's oldest known salt mine

The worlds oldest organism was reanimated within the salty walls of this mine

The Catacombs hold secrets much stranger than the bones stacked within them

Massive subterranean temple built in secret

A Collection of Curious Facts

This is what we believe:

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A Collection of
Curious Facts