A painfully obvious spy house sits right across the street from the Russian Embassy.

Canada's subterranean Cold War museum has doubled as a movie set.

This apartment is a true time capsule of local life in Bulgaria during the Soviet regime.

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

Also known as "Robin Hood's tree," this tree became a famed location along Hadrian's Wall before it was cut down in an act of vandalism.

This bronze statue of Martin Luther King was placed in the park without permission.

A complicated contraption for telling time by the moon.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

This castle played host to the largest great hall found in medieval Central Europe.

On the Oregon coast there is a natural hole that seems to be draining the sea.

Eat your Big Mac in a DC-3.

A rapidly disappearing authentic bit of the old south.

One of the largest Buddhist stupas in the world keeps an eye out in every direction.

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

The "3rd largest" city in California is an empty mirage of suburbia in the middle of nowhere.

Inside this old train depot resides a multi-line model train covering western North Carolina.

This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

This erect, phallic geological spire wasn't always named so domestically.

A small Wyoming town is home to the state's oldest-operating soda fountain.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

An experimental, automotive replica of Stonehenge.

An institution dedicated to curiosity, logic, riddles, and Mongolia's long history of puzzles.

Buy a token from the liquor store and you can make this beast spew flames on command.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.