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

This sanguine boulevard was named after a deadly cowboy bar fight.

A flat-topped butte that makes a constant backdrop for Western art.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

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

This rusted car found in Petrified Forest National Park's Route 66 exhibit may be the most photographed abandoned car in the country.

This highest peak in New Mexico is named after an explorer who had a habit of lending his moniker to peaks.

Three witches are said to be buried beneath these unmarked concrete graves.

A unique collection of drawings that represent Fremont Native American culture.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

This highest peak in Idaho can only be reached by traversing a formation known as "Chicken-Out Ridge."

Home to the deepest rift anywhere on Earth.

Supposedly Satanic numbers adorn this preserved submarine sail.

A wonderfully curated used bookstore in an airport.

This rooftop sign has been confusing Milwaukee-bound airline passengers for decades.

See 150 million-year-old dinosaur tracks and bones dating back to the Jurassic period.

California's longest-running tourist attraction is a stump.

A monument to the art of slicing people open.

All of Chicago's wood-paved streets are long gone but two alleys remain.

G.V. Black, the Father of Modern Dentistry, keeps an eternal eye on Chicagoan’s teeth from his perch in Lincoln Park.

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

An ADA-accessible trail and deck offering stunning views of Colorado’s Mount of the Holy Cross.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

The highest point in Wisconsin is capped by two towers that are not as mythic as Tolkien's but provide much better views.