Air-raid tunnels hidden beneath this opulent hotel provided shelter and an escape route—and one of the world's longest slides.

Decades' worth of lost and forgotten objects make up the collection of this tantalizingly odd little museum.

A taste of Egypt on the outskirts of Geelong.

Norway has built what may be the world's most beautiful public toilet.

Unfortunately, you can no longer spend a night in this single-person treetop hotel.

This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."

A charming, homemade vending machine dispenses burgers and sandwiches at this hole-in-the-wall bakery.

This museum is filled with an eclectic collection of unique inventions.

This giant squid sculpture sits near the spot where a real-life specimen was captured in the late 19th-century.

Giant works of art interspersed throughout meadows and woodlands offer a new discovery at every turn.

Canada's largest dinosaur skeleton was hidden away in storage for more than 40 years.

This strange pyramid is a unique feature of the Austrått Manor.

This unique sculpture is often overlooked by pedestrians.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

A painfully obvious spy house sits right across the street from the Russian Embassy.

The site of a tragic massacre that spawned a multimedia franchise.

What happens here stays here – unless it affects the whole world.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Here, visitors can swing with the waves of the Pacific Ocean.

Constructed along the shores of Lake Zurich, this pavilion is a walk-through work of art.

The Vatican of the movie industry turned into an actual church.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

A daily replay of the experiment that proved the rotation of the Earth.