The bottle house obsession struck a Florida man in his retirement, and now he can't stop building.

The smallest post office in the United States is no bigger than a broom closet.

Over 12,500 words are scrawled across each room of this historic plantation house and no one knows why.

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

Secret North Korean passage discovered below the world's most dangerous border.

South Korea's only sex-themed park.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

Solar observatory doubles as a daring display of Expressionist architecture, much to Einstein's chagrin.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

The world's most delightful not-NOT-religion welcomes visitors to the town of Templin, just like its more stoic peers.

Bursting forth from a historic German neighborhood, these day-glo palaces are now a bright fixture in the town.

Money made from smuggling sugar helped create this wondrous rock maze in honor of the Prussian Queen Louise.

This 600-year-old home seems to defy physics.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

These 18th century gardens tell a rocky story of the son of Odysseus.

This German version of Universal Studios holds a vault of treasures from the NeverEnding Story.

A stairway to heaven, or to nowhere at all.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

The patron saint of spinsters grasps a container of dried blood.

This "floating railway" is one of the world's oldest monorail systems.

"The most colorful grottoes of the world.

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