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

Washington's iconic carousel has a nice piece of Civil Rights history.

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

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Perhaps the most scandalous statue of America's first president.

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

The most accurate timepiece in the world.

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

This museum houses two of Mexico's most impressive Aztec monoliths.

The unique collection often goes unnoticed by visitors focused only on the archaeological objects.

The former headquarters of Mexico's Secretariat of Public Education now houses a muralism museum, including Diego Rivera's first large-scale mural project.

Come face to face with the ferocious visage of the serpent-headed mother goddess of the Aztecs.

It's believed this golden brick is part of the legendary lost Aztec treasure.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

The turquoise-studded skull of a long-dead Aztec man sits within Mexico City’s Museum of Anthropology.

The striking jade death mask of an ancient Maya king is displayed in a replica tomb in Mexico City.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

The most unloved grain elevator in Brooklyn was a “Magnificent Mistake.”

A community farm in the midst of the Brooklyn concrete.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.