At 207 feet, one of the world's longest continuous escalators.

This campus chapel is Robert E. Lee's final resting place and a topic of debate about the legacy of the Civil War.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

D.C. once had its own tiny rival to the New York Stock Exchange.

This 1000 year old relic-filled cave monastery and UNESCO World Heritage Site also hosts an amazing micro-miniature museum.

340-foot statue built to honour the Heroes of the Soviet Union.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

This nine-story building is the oldest standing skyscraper in D.C.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The oldest continuously operating fish market in the United States.