391 Items Tagged

Tunnels

Upton Chamber.

Upton, Massachusetts

Upton Chamber

This mysterious artificial cave has long puzzled New Englanders.

Tower of Wind.

Kawasaki, Japan

Tower of Wind

Curious onlookers have suspected this strange structure is a secret government base.

Seikan Tunnel.

Seikan Tunnel

The world's longest tunnel with an undersea section.

816 Underground Nuclear Plant.

816 Underground Nuclear Plant

This top secret Chinese military megaproject is the world’s largest human-made tunnel structure.

An enterable Saab AJ-37 Viggen.

Aeroseum

This declassified Cold War bunker hosts a large collection of Swedish aircraft.

Inside the tunnel.

Rijeka, Croatia

Rijeka Tunnel

This military tunnel dates back to World War II and provides visitors with a little wartime adrenaline.

Reproduction of a Shanghai streetcar.

Shanghai, China

1930 Folk Street

This tunnel looks like a sliver of Shanghai that's stuck in the past.

Daniel Monnier in 2019, reflected in his polished limestone mirror.

The Hidden French Tunnel Sculpture That Took 30 Years to Complete

Artist Daniel Monnier spent a couple of decades away before returning to complete his vision.

Sam Harrison September 25, 2019

Acequia Madre.

Santiago de Querétaro, Mexico

Acequia Madre

The remains of a centuries-old water system that inspired local legends of secret tunnels.

Abandoned Eriksdal Train Tunnel.

Södermalm, Sweden

Abandoned Eriksdal Train Tunnel

It was meant to help transport wounded soldiers to a secret underground hospital.

The Little Tunnel.

Westmoreland, Tennessee

The Little Tunnel

This tiny 19th-century tunnel was built so a man could move his cows from one field to another.

Looking into the tunnel from the gift shop.

Traverse City, Michigan

Botanical Garden Visitor's Center Gift Shop Tunnel

It leads to a former hospital’s old root cellar.

Entrance to the tunnel.

Duluth, Minnesota

Ely's Peak and DWP Railroad Tunnel

A spooky defunct railroad tunnel now part of a sprawling trail.

Newhaven Fort

Newhaven, England

Newhaven Fort

A Victorian Fort built into the chalky cliffs that overlook the English Channel.

Thurgoland Tunnel.

Thurgoland, England

Thurgoland Tunnel

A repurposed railway tunnel with otherworldly acoustic characteristics.

Gea de Albarracín, Spain

Albarracín-Cella Roman Aqueduct

This ancient tunnel is one of the most important examples of Roman hydraulic engineering in Spain.

Restored tunnel entrance.

Pulaski Tunnel Trail

This trail leads to a mine that was used as a sanctuary during the Great Fire of 1910.

The tunnels are not wide enough for two cars to pass each other.

Faroe Islands One-Lane Tunnels

The narrow passages will challenge even the bravest driver.