Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

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.

Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.

Look closely and you’ll notice that the color changes a third of the way up the tower.

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

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

This vintage theme park is peak Christmas kitsch—and it's open all summer.

Snapshots of late 19th and early 20th century Americana, focused on life on the plains, are displayed in this museum.

Experience life in one of America’s smallest neighborhoods.

This freewheeling amusement ride is the last of its kind.

This 19th-century house museum features a horse-drawn hearse and other antique oddities.

This building is a recreation of the gatehouse that separated Los Alamos from the outside world during the era of the Manhattan Project.

This shrine commemorates the site of the first known Catholic mass in the United States.

The world's largest mineral hot springs is home to a herd of bison, a free public bath house, beautiful mineral formations, and a terrifying swinging bridge.

One of three remaining theatres in the United States created in the Art Deco Mayan Revival style.

Many mysteries surround these objects questioning whether they are cannonballs at all.

This seaside property, an example of Art Deco Streamline Moderne style, was designed to embody the curves of a great ship.

This balancing rock is one of Utah's most unusual geological formations.

A cornucopia of gargoyles adorns the oldest portion of Oxford’s Magdalen College.

This roadside prairie Statue of Liberty replica is one of the foremost examples of the Boy Scouts of America's "Strengthen the Arm of Liberty" campaign.

In 1988, jazz legend Chet Baker fell to his death from a window of this hotel facing Amsterdam Centraal.

In the 1930s, people used to take boats from the mainland to see this Art Deco venue.

A picturesque (all-natural!) beach in a landlocked state.