This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

Where a rare geological phenomenon created a section of rock that resembles a checkerboard.

In Bermuda, this formal naval residence has become a go-to for cliff-jumpers and hikers.

At just 25 inches at its narrowest point, it's one of the tightest streets in the world.

No one really knows how these old hobby horses got here, but the herd keeps growing.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A mechanized clock where a man fights off a dragon, crab, and rooster.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

Executions were once held near this beautiful 18th-century fountain.

The remains of the medieval wall that once surrounded Paris with ties to the construction of the Louvre.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

This mysterious artificial cave has long puzzled New Englanders.

This stone tower in a small town's graveyard looks as though it would be more at home in a fairy tale.

This clock tower is all that remains of Bird Hall, constructed by one of the founding families of this Massachusetts town.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

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