This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

The world's tallest statue of an American hero.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

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

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

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

Auburn's iconic eagle flight goes back to a 19th century eagle that dropped dead on the field after inspiring the football team to victory.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Sitting in the arguable birthplace of the Wild West, this museum holds the largest collection of bronco busting bric-a-brac in the world.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Resting place of the Texas A&M canine mascots, who watch the game from the grave with their own miniature scoreboard.

Official museum, hall of fame, and repository of the Texas Rangers.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

A modernist landscape of water and sci-fi concrete.

Hear the quietest sound from across the dome.

The taxidermied remains of a once-great parrot.

The ancient tomb acts as a calendar that keeps perfect time.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.