Exact replica of the ancient monument, but much, much lighter.

This sprawling farm was once a Cold War-era hideaway for the nation's top diplomats.

When it comes to handsignals (and colonialism) rock always beats scissors.

A clone of a cloned tree that was so important it allegedly had its own guards.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

A wondrous old library overlooking the nation's capital.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

This grand gothic brewery has been pumping out suds for over a hundred years.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

A historic neighborhood church is reborn as a psychedelic arts collective.

These figures float and flutter in this fountain crafted by famed Swedish sculptor Carl Milles.

A whopping 14,000 copper coins cover this miniature fighter jet.