Former headquarters of the KGB.

Moscow's imposing monument to the Space Age.

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.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Storybook cottage in Beverly Hills was once the site of 1920s silent film studio, affectionately known as "The Witch's House."

Resting place of Hollywood's immortals is also site of summer film screenings.

Historic funicular railway, believed to be the shortest railroad in the world.

The legendary building that needed ghostly approval before being built.

Shiny Brutalist box commemorates a pioneer of electricity and houses a railway transformer.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

A hands-off space for graffiti artists to hone and display their skills.

The anatomical-pathological collection of a man who changed surgery.

One part local history, 99 parts gruesome haunted house.

This luxury shopping lane has been protected by its own tiny police force for over a century.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

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

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