Surrounded by a verdant garden and a backdrop of ivy, a monument to beloved poet Khalil Gibran stands outside of the Lebanese embassy.

The only Leonardo Da Vinci painting in the Western Hemisphere.

A line of blue paint marks the route of the inaugural parade.

A tribute to the pop culture icon overlooks this Washington D.C. intersection.

This grisly headstone doesn’t seem to be resting in peace.

The elevator that makes it possible to fly American flags in bulk over the U.S. Capitol

Mysterious installations bring levity and light to a sometimes stodgy city.

A public art jibe at one of the United States’ oldest and longest-serving senators.

Was there a small "backpack nuke" hidden in the attic? JFK apparently thought so.

During Prohibition, the U.S. Congress had an "official" bootlegger, with his own Capitol Hill office.

Press 1 for knock-knock jokes.

A small token of gratitude from freezing cold journalists who were given a warm haven while covering JFK's inauguration.

The only National Monument ever to go missing for nearly 50 years then resurface in a dump.

These recently uncovered walls are all that's left of Washington, D.C's first defense contractor.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

An obscure public service from the U.S. government that redeems burnt, moldy, and soiled old greenbacks.

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

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

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.