The remote graves mark the mysterious deaths of four 19th century explorers.

The final resting place of a famous 19th-century murder victim whose identity is still a mystery.

This grave marks the passing of a historic Jane Doe whose identity remains a mystery to this day.

The ship that got left behind.

This hunter-gatherer architecture is believed to be the oldest religious complex known.

Where giant ships go to die.

See just what life was like in a 19th-century prospecting town.

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

Nature is leading a successful mutiny on this century-old freighter.

An abandoned water park overtaken by the dunes.

Once swallowed by flood waters, this village has emerged as an eerie shadow of its former self.

Some 20,000 dust-covered unwanted vehicles languish in the desert.

A desert settlement founded and later abandoned by Hawaiian members of the Church of Jesus Christ of Latter-day Saints in Utah's Skull Valley.

Surreal riveted sea forts once protected the Kent shores from German attack.

An Italian hillside ghost town.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

Odd outsider art installations surround a Gold Rush-era ghost town.

A haunting theme park is slowly being swallowed by the jungle.

Far from the shore, this sandy victim of the Skeleton Coast looks like it was plopped in the middle of the desert.

An abandoned desert hamlet swallowed up by sand.

An abandoned stretch of elevated road in the middle of the Brazilian jungle.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.