wbseaman's User Profile - Atlas Obscura
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Gibraltar

Operation Tracer Cave

There was a top secret plan during World War II to seal a group of soldiers inside the rock.
Cookley, England

Drakelow Tunnels

Near Birmingham, England three and a half miles of top-secret tunnels housed a World War II “shadow factory” and a Cold War nuclear bunker.
Kinver, England

Holy Austin Rock Houses

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.
Yavapai County, Arizona

Montezuma Castle

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.
Hyder, Alaska

Hyder

The easternmost town in Alaska can only be accessed from Canada.
London, England

Carting Lane Sewer Lamp

The pretty iron lamp is a reminder of the architecture underneath London's streets.
Ramla, Israel

Pool of Arches

You can row a boat through this ancient underground reservoir.
Napa, California

Monticello Dam Morning Glory Spillway

The largest drain hole in the world.
Nushabad, Iran

Nushabad Underground City

A 1,500-year-old, 3-story subterranean city where ancient Persians took refuge in times of war.
Manchester, England

Manchester and Salford Junction Canal

An abandoned canal route lies hidden under the streets of Manchester.
Traverse City, Michigan

Tunnels of Traverse City State Hospital

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.
Bristol, England

Redcliffe Caves

There's a labyrinth of manmade tunnels stretching for over an acre beneath Bristol.
Nottingham, England

Standard Hill

The English Civil War began right here in 1642.
Nottingham, England

Bell Inn Caves

There's a labyrinth of medieval chambers hidden deep below a 15th-century pub.
Nottingham, England

The Exchange Murals

These 90-year-old murals of local kings, Vikings, and outlaws hide in plain sight in a beautifully baroque shopping arcade.
Nottingham, England

Ye Olde Trip to Jerusalem

The oldest inn in England served brew to the crusaders.
Nottingham, England

Park Tunnel

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.
Baker, California

Mojave Megaphone

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.
Doyle, California

Sierra Army Depot

One of the largest fleets of armored vehicles in the world, sitting out in the California desert.
New York, New York

Preserved Remnants of 17th Century New York

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.
Botyre (Ayent), Switzerland

The Bisses of Valais

Medieval irrigation channels built into the sides of mountains provided Valais with water for hundreds of years.
North Bend, Washington

Twede's Cafe

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.
Parachute, Colorado

Rulison Nuclear Test Site

The site where a nuclear bomb was lowered over 8,000 feet underground and detonated as an experiment in natural gas extraction.
Cleveland, Ohio

West Side Market

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.