An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

Gargantuan home of Russian science.

World's largest bell sits on the grounds of the Kremlin in Moscow.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The "lovely red Vega" of the legendary record-settling pilot.

A wonderful collection of all things Oz is nestled in the heart of Kansas.

The "Prussian Versailles" that is as glorious today as when it was built.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The site of the climactic scene from the classic horror film is now a historic landmark.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Remnants of a storybook amusement park hidden behind a strip mall.

A museum dedicated to exhibiting remarkable outsider art.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Pizza with a side of fine art.

Shop of curiosities with a dinosaur museum tucked in its basement.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

Metro station with a claim to rock n' roll fame.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Berlin's old airport.

Cold war icon and onetime "hole" in the iron curtain.

The most visited, and possibly most controversial, museum in Germany.