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

The site of a minor battle might have been forgotten if not for one participant’s famous family and the death of a respected warrior.

When ecosystems collide in the arid Southwest.

The highest bridge in America was built for an almost unnervingly small amount of money.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

How did a massive marine arthropod find its way to landlocked Ohio?

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

The largest source of fossilized insects anywhere.

The largest self-built castle in the U.S., six decades in the making.

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

The moving metal works of one troubled artist can still be viewed on his front lawn... for now.

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.

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