On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

The only presidential monument to display a late POTUS's actual casket.

This historic hotel invented the chocolate brownie.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

Hear the quietest sound from across the dome.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

An accidentally hidden library containing the ephemeral history of New York.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Once America's longest-manned military fort, now an abandoned hulk.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

Opulent downtown movie theater now houses cars as an indoor parking garage.

A Beaux-Arts triumph set to become Ford's innovation campus

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

The smallest post office in the United States is no bigger than a broom closet.

This historic oak tree has been around for over 300 years and might last for 300 more so long as it doesn't fall apart first.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.