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

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

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.

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

Once home to the largest photo service in the United States.

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.”

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

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

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

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

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

The lesser-known Alice sculpture of Central Park dedicated to the “godmother of American children.”

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

The front yard of an Upper East Side town house hides the last fragment of one of New York's most famous theatres.

Recovered suit of a cannibalistic West African gang.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

This impressive scene portrays the elusive forest giraffe of Central Africa.

This poignant display is now a memorial to these regionally extinct species.

This magnificent herd of stampeding elephants has been frozen in time for over a century.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

The site of a classic series of Laurel and Hardy pratfalls.