Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

The world's longest known cave system.

A small section of Boise, Idaho maintains the unique culture and traditions of the Basque people.

Jail from the 19th century that was built by inmates.

This blowhole is supposedly caused by a trapped monster.

The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

Statue dedicated to the star of an old television show.

Wisconsin's most celebrated export gets the royal treatment on I-94.

This small-town opera house has appeared much more in national culture and history than its charming setting might suggest.

Its eclectic exhibits range from the world’s first motorcycle to Luke Skywalker’s Land Speeder.

Where a brain, a beauty, a jock, a rebel, and a recluse met one Saturday and changed their lives forever.

Despite its name, this fast food museum is actually a replica of the ninth McDonald's store.

A towering Art Deco movie palace made to look like a Mayan temple.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

Cold War missile launch site which has been converted to a public park.

You can take a class, browse the library, or visit the lavish lair of an international men's humor society.

This botanical garden outside Chicago boasts an array of more than 300 varieties of lilacs.