A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

A museum dedicated to the history and exploration of both popular music and science fiction.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A giant Troll lurks under one of Seattle's oldest bridges.

A walk through the historic city center, under the streets of Seattle.

The 28-foot granite map plots the locations of 40 theaters in New York City.

This abandoned subway station can still be seen on regular commuter trips.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

The only runway directly into the magic kingdom has been closed since 1972, but it still sings to you if you drive fast enough.

Once featuring over 60 miniature replicas of famous Chinese locations, the Splendid China theme park was completely abandoned and is now mostly rubble.

The highway's southernmost spot is a beloved local attraction.

Near the ruins of a Civil War coastal fortress lies the only known African refugee cemetery in the United States.

Georgia may have been on his mind, but this memorial in Florida shows that Greenville was really Ray Charles's childhood home.

Electrical pylon in the shape of Disney's beloved mouse.

"We Seceded Where Others Failed."

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

The island residents are known for taking their quirky sense of humor with them to the grave.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

A building so large that it has its own weather.

Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.