Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

An extravagant western hotel where every floor is the "ground floor."

The Ozarks' strangest dwelling.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

This southwestern historic site was designed and built by an artist who wanted his work to "feel at home."

See massive fossils that are over 200 million years old in northeastern Arizona.

Joe Minter is only doing the work of God in his yard, he says.

A contemporary fresco movement illustrates the region's rich history.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Peace Park and the Atomic Bomb Dome.

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

Nine Gardens in one—with tea service.

Japanese national treasure originally built in 593 CE.

The most famous location in China was home to whole dynasties worth of imperial rulers.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

Step inside Lucy, the world's largest "elephant."