Two tall rocks sit at the center of this site, once the home of a large Ancestral Puebloan community.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

A museum devoted entirely to the rattlesnakes and snake-related art.

Take a self-guided tour through one of Colorado's most elevated mining districts.

This historic boathouse was constructed using salvaged lumber from burned barns.

This estate on the banks of the James River was home to a Founding Father, two presidents, a famous bugle melody, and what some say was the actual first Thanksgiving.

The first railway tunnel to cross the Continental Divide and, at 11,523 feet, was once the highest railroad tunnel in the world.

A little-known hot spring haven right below the highway.

A frozen oasis lies beneath the scorching New Mexico desert.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

The world’s largest concentrated solar plant generates as many problems as megawatts.

This giant temperature attraction created some giant electric bills.

Thousands of turbines whir at at the origin of North American wind power.

This magnificent, quirky home sits atop a literal gold mine in the middle of the Nevada desert.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

A home covered with elaborate mosaic and other pieces of art.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

When this 160-year-old church was being built, a stonemason included a hidden homage to his late daughter.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

Paranormal activity on the great lakes.

More than 150 snowmobiles fill this Michigan museum.

Strange physical sensations and optical contradictions keep visitors coming back for more.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

An old railroad grade built for the construction of Hoover Dam is now a recreational trail featuring several tunnels and sweeping views of Lake Mead.