The unusual stilted beacon is the town's only active lighthouse.

This abandoned lock-up was saved because of its connection to a local football team.

A university observatory dome painted to resemble the beloved 'Star Wars' droid.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

The homestead of American patriot John Adams.

A 19th-century British industrialist built this Louis XIII–inspired chateau for his homesick French wife.

The busy transport hub is home to the tallest airport slide in the world.

Visitors to this museum will find architectural oddities, an art gallery, and an unlikely bird sanctuary.

Though it may look like a Modernist cathedral, this structure was built to store massive quantities of grain during World War II.

The only residents of this abandoned housing development full of identical castles are stray cats and dogs.

Inspired by a piece of concrete, these three pyramid-shaped buildings have been beloved Indianapolis landmarks for over 50 years.

Newfoundland's last remaining granite lighthouse.

The first (but not only) upside-down house in Germany.

One of the world's steepest streets seems to have houses sliding down it.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

A luxurious doomsday bunker hidden beneath an unassuming Las Vegas home offers the best of subterranean suburbia.

This house covered in small stones was the work of one man over the course of nearly 30 years.

Modern-day cave dwellers carve elaborate homes out of volcanic debris.

Made famous by 'Star Wars,' these troglodyte homes face an uncertain future.

At this ancient settlement at the foot of Mount Babadağ, honeycomb tombs are carved into a round cliff.

There were once more than five stones in this ancient monument.

This atmospheric pre-war building is home to one of the few manually operated elevators left in Tokyo.

If you fly into Edinburgh Airport, it's possible to spot this prehistoric site without even getting off the plane.

The longest-covered bridge in the state of Maryland.