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

This once-booming Gold Rush town is now home to a herd of feral donkeys.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

A spiritual vortex among the red rocks in Sedona.

One of the largest, oldest, darkest, quietest motel rooms in the world.

See massive fossils that are over 200 million years old in northeastern Arizona.

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

Most-visited and most-photographed slot canyon in the American Southwest.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

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

Millions of numbers carved in glass represent the tattoos forced upon victims.

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

Historic Hull Street was actually the first street with a proper name in the Boston area.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

This landmark cemetery in Boston was created more than 300 years ago.

The site of Paul Revere's historic two lantern warning.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

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

Two thousand artifacts from around the world collected by one woman who loved to travel.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Sloth rehabilitation center in the jungle of Costa Rica.