This huge ship ran aground and has simply been left to sit there ever since.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

It's clear this abandoned Art Deco gem was no ordinary cleaners.

The world’s largest Masonic temple was saved by the White Stripes.

The ancient necropolis houses the immense rock-cut tombs of four Persian kings.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

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

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

A remarkable time capsule of American manufacturing deep in Maryland coal country.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

The fairy tale castle of the "fairy-tale king."

Built by the patriotic residents of Boonsboro in a single day.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.