Now a memorial, this factory was once used as a concentration camp for artists by the Vichy government.

Abandoned blockhouses from Nazi Germany's Atlantic Wall erode into the sea on a French beach.

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

A subterranean relic of the Spanish Civil War hides below this picturesque park.

The designated Jewish quarter in Fez dates back to the 15th century.

This restored 17th century synagogue is one of the few remaining structures in Morocco’s ruined Jewish quarters.

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

Interactive modern and vintage submarine equipment, World War II relics, and submarine attire.

World War II bunker still standing on the New Jersey beach.

Law-protected wreckage serves as a peculiar memorial for an almost forgotten World War II tragedy.

There’s a hidden military meme engraved on the World War II Memorial.

The world's oldest rose is so tough it survived being bombed in World War II.

The site of the first battle of World War II.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

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

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

Reminders of the Battle of Berlin still scar the railway.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

Shop for books in the New Orleans house where William Faulkner once lived.

A house of courtship where the Jazz Age's most storied lovers got their start.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.