Peer Inside the Mysterious Paris Catacombs

These underground tunnels house the remains of over six million people.

Queens, New York is Home to a Hidden Civil War Fort

Originally designed to defend the East River, Fort Totten is now open to the public.

Colditz Castle: The World War II POW Camp the Nazis Considered Inescapable

Meet the many men who proved the Nazis wrong and learn about the fascinating ways in which they pulled off the impossible.

See the World's Most Beautiful Churches from the Safety of Your Home

From Iceland to Ethopia, these stunning structures are must-sees for theists and agnostics alike.

10 Fascinating Ghost Towns Around the World You Can Visit

Decaying buildings, sand-swept streets, and a sense of suspended time make these towns well worth a visit.

[CLOSED] Win an Inside Look at The Curse of Oak Island

Randall Sullivan's new book is the perfect complement for any history buff. 

16 Travel Books That Will Feed Your Wanderlust

Explore the world on foot—or from the comfort of your reading chair.

The 14 Most Beautiful Underground Caves Anyone Can Visit

Venture below the surface for our planet's most spectacular views.

The Haunting Jungle Cemetery of Sandakan

Hidden in the lush coastal forests of Malaysia is a jungle cemetery with a haunting history.

These Bloody Days: The Tower of London in Tudor England

A Journey Through Tudor England explores the building's infamous executions and the "graffiti" left by doomed prisoners.

The Bloody Past of Bethnal Green

Stroll the foggy streets Bethnal Green, a historic London neighborhood haunted by the wartime Bethnal Green Tube tragedy of 1943.

The Enduring Mysteries of Easter Island

What secrets lie hidden on this isolated island?

5 Gateways to Hell

Peer into the underworld through these fiery earthly portals.

The Subterranean Mystery of the Williamson Tunnels

Buried deep beneath the streets of Liverpool is an underground world that defies explanation.