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

A beautiful geyser under environmental threat.

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

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Haven for Cape Fur Seals, until the Ring of Death of jumping Great White Sharks arrives.

The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

The world's second largest single-dish radio telescope, once used to contact E.T.

Years of neglect and nature took a toll on this 19th-century lighthouse.

Elevated freight railway turned wildly successful urban park.

“The oddest pub in South Africa,” inspired by a practical joke.

An odd little fishing town that is inundated by tourists looking to be locked up in a cage and surrounded by great white sharks, because why not?

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

The world's brightest bioluminescent bay.