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

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

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

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

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

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

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

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

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

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

This grand gothic brewery has been pumping out suds for over a hundred years.

The United States Capitol's former columns still stand.

One of the largest underground systems runs under Canada's largest urban center.

The celebrated eyesore created by starry-eyed sweethearts.

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

Elevated freight railway turned wildly successful urban park.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

A bright little alley in La Boca is a part of tango history.

Conifers from the Jurassic Period transformed into stone in Patagonia.

The inspiration for the Patagonia Clothing logo, Cerro Fitz Roy turns pink at sunrise.

This stunning mass of ice spans 121 square miles and is still growing.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.