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

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

Pirates had to be ousted from the land where this now ruined Louisiana fortress was built.

The crumbling ruins of this southern American fort have survived storms, war, and cults.

Religion and personal struggle gave birth to this collection of concrete angels.

World's first "penitentiary," meant to be humane, drove men insane.

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.

The crumbling remains of a 19th century fortess.

An Aztec snake god has taken the material form of an apartment complex.

This massive stone and steel monument remembers a century-old battle that cost thousands of lives and nearly destroyed the city.

The site of many battles and tragedies, including the 40 maidens who leapt into the sea.

This once-grandiose behemoth of a monument from the socialist era now sits quiet and closed up.

This massive concrete sculpture is said to be the heaviest communist monument on Earth.

An abandoned saucer-shaped monument in the Bulgarian mountains.

The last slot car racing arcade in Brooklyn is keeping the dream of speedy little autos alive.

This forlorn park is the result of a failed investment turned tax dodge.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

This decrepit abandoned building is made all the more eerie by its dark history.

A museum celebrating the self-taught artist-environment builder.

A bedazzled house and crown "jewel" of outsider artist Loy Allen Bowlin.

The freshest fish here are the ones you catch yourself.

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.