A former major munitions plant that has been converted into a sprawling art space.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The United States Capitol's former columns still stand.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

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 lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

At 207 feet, one of the world's longest continuous escalators.

There just so happens to be a court even higher than the U.S Supreme Court: a basketball court in the building itself.

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

A much-maligned monument to teetotalism.

Home to items never before seen by the public.

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

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

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

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

The second oldest continuously operating bar in Louisiana.

The final resting place of New Orleans' most famous voodoo priestess.

This elaborate towering structure was once famed for its revolutionary height.

World's first "penitentiary," meant to be humane, drove men insane.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

2300-year-old Roman road connecting the empire.

The celebrated eyesore created by starry-eyed sweethearts.