A failed Russian themed village and amusement park in Niigata prefecture.

Ever hear of the Milazzo Cage?

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The ghostly remains of an accidental sea.

Abandoned 19th century homes once occupied by naval officers, soon to be demolished.

A crumbling hospital from the 1850s on Roosevelt Island.

Towns with a resource known as "white gold," valuable enough to fight a war over, now stand ghostly and empty.

A Turkish ghost town abandoned in a population exchange with Greece.

Abandoned silver mine strewn with wrecked and twisted structures.

Abandoned concert venue legendary for its rock counterculture.

Terrifying derelict military hospital once housed a recuperating Hitler.

Civil War Fort on an island in the Boston Harbor.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

Railroad came. People came. Railroad left. Town died.

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

The remains of what was, not so long ago, the world's largest city.

A battle between nature and architecture in the Cambodian jungle.

Once the most densely populated place in the world, this island is now a ghost town.

One of Scotland's most important modern structures, it just made the '100 Most Endangered Sites' list.

Every equinox this Maya pyramid puts on a spooky ancient light show.

The enigmatic and seldom visited ruins of a Mayan city-state.

An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

A mysterious air force base built to resemble a Long Island fishing village.