It has an American Dream Car exhibit, Europe's largest Formula One collection, and many, many mannequins.

This long-distance walking route follows the Prime Meridian line as it passes through England.

The obelisk honors the cyclist troops who were killed during World War I.

An ancient rogue artist community hidden next to one of the world's most glitzy and glamorous cities.

A slightly surreal menagerie of structures that were lovingly spared from demolition and reconstructed in a field.

The tunnel under the Capitol Building where Congress takes out its trash.

The hidden offices underneath Memorial Bridge have been locked up since 1976.

These giant volcano sponges in Antarctica are thought to be the world's oldest living animal, at 15,000 years old.

During the holidays, a vintage subway train whisks New Yorkers back in time.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

The laboratory where the Soviet secret police invented exotic poisons used to kill dissidents in hideous and (mostly) untraceable ways.

The splendor of this 17th century golden chapel has led it to be called the "eighth wonder of the world."

The early American colonists were such ferocious drinkers the law actually required every town to have a tavern.

The world's tallest bridge is also possibly the most elegant.

An eccentric millionaire's personal curio collection includes at least one shrunken head.

True to his word, George Swanson is buried in his white 1984 Corvette.

Rotting dome home spotted near Chapel Hill, North Carolina.

A wunderkammer of exoticism immortalized by Tom Waits.

A peculiar family mausoleum built by a German nobleman captivated by the occult.

This factory made "health corsets" that were a step towards liberating women's bodies.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

At the point of oceanic inaccessibility, you can't get farther from dry land without leaving the planet.