This sculpture of a fisherman spent six years at the bottom of the Schuylkill River.

The corporeal remains of Napoleon III's dentist rest under this 15-story obelisk.

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

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

After his presidency, George Washington planned to live only a few blocks from the Capitol building.

The tunnel under the Capitol Building where Congress takes out its trash.

"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 secret greenspace hides atop a Capitol parking garage.

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

A historic neighborhood church is reborn as a psychedelic arts collective.

This lovely pocket park is one of the most under appreciated in D.C.

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

The U.S. Fish Commission’s effort to mass produce carp.

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

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

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

The "lovely red Vega" of the legendary record-settling pilot.

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

‘Bush the old fire dog died of poison July 5th, 1869. RIP.’

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

Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

Helen Keller once broke ground on this historic center for the study of technologies to benefit the hearing impaired.

A Spiritualist house of worship where believers communicate with the dead in the spirit world.

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