The branches of this sprawling cedar tree are laden with wishes big and small.

The location where the American Revolution ended.

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

A replica of the famous memorial statue at the Normandy American Cemetery hides in an office building in downtown D.C.

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

This unassuming passageway played a key role in one of the most important events in U.S. history.

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

A much-maligned monument to teetotalism.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

"Congress may voluntarily remain in session throughout the summer, in order that our Congressmen may be protected from the intolerable discomforts and dangers of the ordinary outdoor weather!”

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

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

Perhaps the most scandalous statue of America's first president.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

The sculptor was instructed to add “stallion attributes” to the general's bronze mare.

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

A convincing little bit of ancient Egypt smack dab in Richmond, Virginia.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The land is home to swimming ponies and a legendary 18th-century treasure.

The first blast furnace in the United States that used coal and coke fuel instead of charcoal to make pig iron.

After the musical legend's death, his memorial was mysteriously graffitied in gold.

The watery grave of an impractical idea.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...