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

Fittingly, America's museum of architecture is itself a magnificently designed old building.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

The national park was once a plantation estate.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

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

The most accurate timepiece in the world.

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

Art deco landmark on the outskirts of Washington, D.C.

In Warrington’s Golden Square, it's always tea time.