Ancient pueblos built into the base of a natural canyon wall.

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."

One of the largest aviation events in the world brings half a million aircraft enthusiasts to Wisconsin each year.

The Bong-area park police have asked visitors to please, stop stealing the signs.

A museum devoted to the victims and the survivors of the most catastrophic fire in American history.

A restaurant and lodge in northern Wisconsin which served as a clandestine hideout for John Dillinger and featured one of the most famous botched FBI raids in history.

One of Frank Lloyd Wright's final works was this UFO church.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

A house and yard adorned with bizarre concrete sculptures in a Milwaukee suburb.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

Few other hotels can rival the grandeur of the Castle in the Rockies.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

This expansive bridge in the Canadian wilderness was originally just built for friends.

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

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

Washington's iconic carousel has a nice piece of Civil Rights history.

The "lovely red Vega" of the legendary record-settling pilot.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

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

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

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

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