The former home of the army detachment that captured Geronimo.

The birthplace of both the Atomic Age and Godzilla, and the namesake of the bathing suit.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

An enormous concrete structure built over a nuclear crater.

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

This largely forgotten piece of Cold War history stands hidden in the woods just north of the Mississippi Gulf Coast.

A facility built in 1992 for an underground nuclear test remains in place today.

The final resting place of the world's first nuclear reactor.

This chest hospital with a dark, haunted past serves as a fitting set for horror films and a paradise for ghost hunters.

A museum dedicated to firefighting in a city that was crucial to the modern history of the profession.

These trenches were used to train the Scottish military for life on the frontlines of World War I.

The colorful stairs are made with marble from the world's major quarries.

Long abandoned underground complex to keep royals safe from a nuclear war that never came.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A small stone monument marks the spot on Stavely Road where the first of hundreds of missiles touched down during World War II.

This sculpture, residing in a quiet corner of a London park, honors the victims of 9/11.

The largest clown school in Britain offering accredited degrees.

The bones of two medieval royal lions were discovered at the historic fortress.

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

This mysterious and unique painting is filled with symbolism.