The video game-themed street art first popped up in the French city.

The most accurate timepiece in the world.

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

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

There’s a hidden military meme engraved on the World War II Memorial.

Repository for more than 22 million pickled specimens.

The monster at the center of the Darwin Center Spirit Collection.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

Eighty million natural history specimens call this gargantuan museum home.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Bird dung painted this huge boulder which in turn inspired the name of a city.

An electrifying collection of gadgets and literature from the 16th through 20th centuries.

The cardinal directions, set in stone.

It was once the base for a series of domestic terror attacks.

These unusual rooms on wheels are holdovers from the 1960s.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

This century-old confectioner's outlet store was plucked right out of the Seattle World's Fair.

The Lowcountry color with the power to stop evil from entering a home.

Sleep beneath the big screen at this old-school movie theater.

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

A colorful statue honoring the local salmon in glass and bronze.