Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

Dine on ceviche tacos in the sea at this floating restaurant only accessible by boat.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

Shipwrecks, ruins, and turtles are all that remain on this haunting Caribbean ghost island.

Once an ancient sea, this landscape of rocky ravines is filled with the fossils of ancient marine life.

A 20-foot-tall egg painted in a traditional Czech patterns by the Czech community in Wilson, Kansas.

Dine inside a giant caterpillar at this community-run eatery.

Explore a misty river canyon from a metal bridge system.

Roman ruins top white travertine terraces formed by ancient hot springs.

An abandoned vacation home spent a decade taking on legends. It's now taking on water.

One believer transformed a local curiosity into proof of Vikings on the Great Plains.

Dozens of lights dangle from the branches of what may be the brightest tree in Los Angeles.

Twenty-year effort to raise a castle using tools and techniques from the 13th century is now abandoned in the Arkansas woods.

Where the author wrote her beloved "Little House" books.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

A subterranean playground in an abandoned slate mine.

The world's greatest slide descends 18 stories from this looping mountaintop viewing platform.

A unique outdoor timepiece at a "clothing-optional" resort.

This cavernous abandoned marble mine is popular with ice skaters in the winter.

Tracing a path of more than four miles around a frozen lake, this is the longest skate trail in the United States.

Peek through the gates at this oasis from the city, full of Old English charm.

Rare recess caves fill this unbelievably beautiful Ohio park.

This 41,000-acre wetland complex is the largest marsh in the interior of the United States.