A striking 12th-century-style castle built on the edge of a cliff.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

This classic restaurant features a gorgeous mirror-clad room.

A slice of central Asia in the middle of Berlin.

Ruins of a German Castle on top of a towering stone pillar.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

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

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

San Diego's most historic and haunted home.

One of the ghostly stops along Route 66.

San Francisco Bay's ghost town.

These millipedes glow not out of attraction, but as a not-too-subtle warning.

This massive redwood tree has a hole in the base big enough to drive through.

The largest permanent Monopoly board makes one of the longest games even bigger.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

A storybook European village in Berkeley.

The largest drain hole in the world.

Magical-looking cottages that inspired one of the most famous animated films ever.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

One man's vast collection of artifacts and ephemera from matchbooks and postcards to vintage neon signs and cars.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

The ghost town that ended up on Ebay.