This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

A spectacular tribute to statesman and philanthropist Andrew Mellon.

A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.

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

The most accurate timepiece in the world.

A painfully obvious spy house sits right across the street from the Russian Embassy.

Over the last century, this elegant columned facade has been home to the headquarters of a bank, several nightclubs, and a restaurant.

This Masonic lodge was the first major private building to be constructed in Washington, D.C. after the Civil War.

A glimpse of the Pacific Northwest‘s indigenous culture in Washington, D.C.

An echo chamber with a waterfall wrapped around its base at the Embassy of Canada in Washington, D.C.

This pre-Revolutionary War grist mill ground corn and flour for soldiers in seven American wars.

This tree is a living witness to the beginning of the Civil Rights Movement.

A sculpture made from recycled materials and hand-blown glass dedicated to transportation and transformation.

This statue is dedicated to Grace Sherwood, the last person in Virginia to be convicted of being a witch.

A bust of the first president welcomes visitors to the only town in America called George, Washington.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

Headquarters of the legendary clairvoyant's readings, spiritual hospital, and massage school.

Neglected resting place of some of the city's early luminaries—and a woman encased in concrete.

The whole world in one water tank.

This suburban park recalls the history of a famous tavern. Despite the name, it's no ordinary place!

One of the last schoolhouses constructed in the early 20th-century still standing in Montgomery County.

Rumors persist that a bottle of whiskey is sealed within this Demijohn-shaped adornment.

This hidden treasure provides a charming access point along the south side of Baker Park.

A Civil War Museum with some notable medical antiques.