Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

This elegant neoclassical garden is a peaceful oasis in the middle of the Nepalese capital.

An abandoned swimming pool decays on the outskirts of Berlin.

The ruins of an abandoned church loom within a picturesque Ukranian village.

Abandoned mini-mansions that were once intended for affluent Bangkok families now sit empty.

This 19th-century church is now a popular roller rink.

This beautiful grotto is one of those places where you can't believe you're just outside Austin.

Barbies stare from the walls, sit on the tables, and even pop out of cakes at this quirky cafe.

This peaceful gem in upstate New York was chosen as the future home of the 14th Dalai Lama's Library and Museum.

Victorian-era Londoners really wanted to believe this 17th-century cistern was actually an ancient artifact.

An unusual vending machine designed to support mourners during funeral ceremonies at Zurich's largest cemetery.

The remains of an ancient Roman city are hidden underneath Bologna's beautiful public library.

This historic square in Nepal is home to temples dating back to the third century.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

Drink and dine in a coral cave that's at least 120,000 years old.

At this Arctic outpost, get to know members of the indigenous Sámi community and meet their herds.

This frozen-in-time summer home outside Moscow provides a look at Russian life in the 1950s.

A sculpture park of the tossed aside relics of the USSR, from Stalin to a massive Soviet emblem.

Back in the tiny USSR.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

Thirteen sculptures in central Moscow graphically depicting vices of the modern world.

Immortal combat in a Moscow museum.

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

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