The site of the climactic scene from the classic horror film is now a historic landmark.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

They sort through millions of dollars worth of diplomatic gifts on behalf of the government.

The towering figures were created from the cemetery's fallen old-growth trees.

The only tennis court that falls under the jurisdiction of the central bank.

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

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

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

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

Before Nixon, "watergate" meant canals.

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

The early data processor factory founded in Washington for the 1890 U.S. Census went on to become IBM.

Where the U.S. government kept its actual treasure, before Fort Knox.

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

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.

A hoard of sky catalogs, astrophysical journals, even the works of Galileo and Copernicus.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

A historic ruin just 20 feet away from a busy highway onramp.

An overlooked tribute to one of the most important peace deals in American history.

When it comes to handsignals (and colonialism) rock always beats scissors.

This robust fence in front of a historic Georgetown home is likely made from hundreds of recycled Revolutionary War firearms.

The discovery site of the "Capitalsaurus," the official dinosaur of Washington, D.C.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.