Fittingly, America's museum of architecture is itself a magnificently designed old building.

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

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

Home to items never before seen by the public.

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

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

One of the world's tallest statues is also one of its most hated.

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

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

The fairy tale castle of the "fairy-tale king."

A unique structure located on the grounds of one of five grand palaces that were built by the Joseon dynasty.

The powerful party began with a secret meeting in this shikumen in 1921.

An out-of-place slice of France, smack in the middle of Shanghai.

The once highest point in China blends symbolic design with a kick of adrenaline.

Why walk on this historical site when you can zoom down instead?

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