Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

Unconventional site where the tracks of Zurich tramcars intersect.

Germany's last remaining Lenin statue has become a lightning rod of debate about the country's divided past.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

This former Imperial summer home was the venue for a royal slap that once echoed 'round the world.

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

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

An artificial crater field that trained astronauts for lunar exploration.

A building so large that it has its own weather.

The secret city built by the Manhattan Project.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

Largest Roman Catholic church in North America.

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

The Bucyrus-Erie model 1850B electric shovel, or "Big Brutus," the largest existing electric shovel in the world.

The first declared National Monument in the United States.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The highest bridge in America was built for an almost unnervingly small amount of money.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

A sharp bend in a dramatic river canyon cut through red rocks.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Jurassic Park—A Still Life.