There are 260 items filed under subterranean sites.

Znojmo, Czech Republic

Znojmo Catacombs

This network of conjoined cellars was riddled with traps and supposedly allowed the townspeople to pretend their homes were deserted
13 Apr 2015
Centre Hall, Pennsylvania

Penn's Cave

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it
12 Mar 2015
London, United Kingdom

The Buried Remains of Little Compton Street

The signs of a long buried road can still be found hidden beneath a London sewer grate
11 Mar 2015
Beit Guvrin, Israel

Beit Guvrin Caves

These numerous Israeli caves were dug out over hundreds years for reasons ranging from hideouts to burial sites
05 Feb 2015
Santo Domingo, Dominican Republic

Los Tres Ojos

This trio of Dominican cave lakes comprise a colorful biosphere of natural life
09 Jan 2015
Amhara Region, Ethiopia

Yemrehanna Kristos Church

An ancient Ethiopian cave church is endangered by the simple building of a road
05 Jan 2015
Boyers, Pennsylvania

Office of Personnel Management Retirement Operations Center

The aggressively banal name of this underground fortress of bureaucracy does little to evoke its truly surreal existence
17 Dec 2014
Manchester, United Kingdom

Victoria Arches

Hidden on the urban banks of a Manchester river are a series of abandoned waterside industrial sites
15 Dec 2014
Surrey, England

Witley Wonder Underwater Ballroom

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial
18 Nov 2014
Cobleskill , New York

Secret Caverns

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art
17 Nov 2014
New Athos, Georgia

New Athos Cave

The second largest in the world, this massive underground void has its own subway
14 Oct 2014
Waxahachie, Texas

Superconducting Super Collider

A Texas-sized particle collider that was abandoned due to its Texas-sized budget
10 Oct 2014
Pilsen, Czech Republic

Pilsen Historical Underground

Underneath the city that invented pilsners are a series of historic tunnels that have been storing beer for centuries
07 Oct 2014
Nevşehir Province, Turkey

Kaymaklı Underground City

While not Turkey's deepest underground city, this subterranean redoubt is the largest
22 Sep 2014
Nevşehir Province, Turkey

Derinkuyu Underground City

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors
19 Sep 2014
Nevşehir, Turkey

Özkonak Underground City

This ancient subterranean megalopolis is known for the hot oil traps that were installed above each of its entrances
18 Sep 2014
El Paso County , Colorado

Cheyenne Mountain Nuclear Bunker

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational
17 Sep 2014
Paola, Malta

Ħal Saflieni Hypogeum

This subterranean necropolis holds three floors of antler-dug grave caves
10 Sep 2014
West Liberty, Ohio

Ohio Caverns

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King"
19 Aug 2014
Brighton and Hove, England

Brighton's Victorian Sewers

To literally keep their waste out of their own backyards, the citizens of this English city built an impressive sewer system that is still in use today
05 Aug 2014
Hinterbrühl, Austria

Seegrotte

This series of underground chambers contains Europe's largest subterranean lake that is slowly drained each day
28 Jul 2014
Melbourne, Australia

Melbourne Storm Tunnels

The labyrinthine storm tunnels beneath the city of Melbourne are ruled by a band of urban explorers
24 Jul 2014

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