The palace for King Gustav III was never completed, but the foundation remains tucked away in this city park.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

The dramatic upward-curving roof is one of the most iconic examples of Googie architecture that still stands today.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

The second-largest giant sequoia in the world.

The unique design was created by the traditional way communal rice paddies were divided among the indigenous people.

One of the largest and most scenic of Bangladesh's tea gardens.

A grove of "candelabra redwoods" deep in California's Lost Coast.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A mini-Stonehenge in the corner of the North Carolina state capitol grounds.

One of the few surviving original NASCAR dirt-track speedways.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

The ruins of an open-air theater built on this Georgia island in the 1970s.

Georgia's first brewery is also one of its oldest surviving buildings.

Quirky outsider art transforms this garden shop into a little stone fantasyland.

An unusual art exhibition in a suburban yard is designed to awaken the souls of those flowing by.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

Abandoned city hidden from the world by tropical forest and isolation on the coast of Kenya.

The world's oldest continuously operating airport was founded by the Wright Brothers.

The oldest living cultivated fruit tree in North America.

Neoclassical Revival mansion and set of horror cult classic Phantasm.

New Preston and Kent, Connecticut - where Friday the 13th, Part 2 was filmed.

This 'Murder House' grand mansion has starred in everything from Bones to Buffy.