Murder, searching for gold, and being cut in half—the memorial statue of Daniel O. McCarthy and the Pioneers of '49

A forgotten tribute to a South American hero hidden in a cluster of traffic islands.

Peek inside Howard Hughes' garage at this Hollywood-themed art installation.

A dreamlike medieval church dug into the tuff rock, with unusual carvings and possible traces of the Templar knights.

Known as the "Hobbit Houses," these storybook homes look like they're straight out of the Shire.

An overlooked memorial honoring the local Washington residents who died in World War I.

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

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

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

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

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

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

People escaping slavery may have hidden inside a corpse vault.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

This restaurant has been a haven for D.C.'s LGBTQ community since the 1950s.

A beautiful memorial tells the story of a formerly enslaved woman whose kindness shaped a burgeoning city.

The 10-foot-wide Long Beach home was built on a dare.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

A historic fort commemorating the United States' naval history.

This symbol of peace is appropriately positioned overlooking the Pacific Ocean.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.