Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

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

A floating cat sanctuary on an Amsterdam canal.

Where manatees are the snowbird vacationers in these balmy Florida springs.

A house carved into a rock in the 1940s.

A hand-built folk art installation covered with messages of God's love.

The ghostly remains of an accidental sea.

The rocks in this arid basin leave trails of movement behind them.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Enormous lake at the bottom of a unique cave system.

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

The United States Capitol's former columns still stand.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.