China's most famous acrobatics act.

The most famous location in China was home to whole dynasties worth of imperial rulers.

After the devastating 2011 earthquake, historic Christchurch begins to recover, starting with the pop-up Re:START mall.

San Francisco's newly reopened hands-on science museum.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Home to the deepest rift anywhere on Earth.

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

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

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

The first declared National Monument in the United States.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Home of mutant livestock.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Macabre astrological automaton clock dating to the late 1400s.

A battle between nature and architecture in the Cambodian jungle.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

A wall of chewing gum moonlights as collective art.