The 7,000-year-old calcium carbonate formation creates a magnificent natural bridge.

An abandoned amusement park based on the popular 1940s Red Ryder comic strip.

From a T-rex to a teapot, a cast of artificial fossils illustrates New Mexico's history.

Eat like pre-Columbian Native Americans in this New Mexico restaurant within the Indian Pueblo Cultural Center.

A little stop along the Texas highway where Rock Hudson, Elizabeth Taylor, and James Dean stayed while shooting the 1955 film "Giant."

Not everything is bigger in Texas.

A spring-fed pool so deep it's used for scuba diving as well as swimming.

The second largest roadrunner in the world stands 11 feet tall in his West Texas town.

This historic folk art garden contains a nightmare tower that claims to be the world's largest concrete totem pole.

An oasis of lilies cultivated by the "Indiana Jones of Water Lilies."

The largest earthwork effigy in the world.

A melancholy guardian doubles as a judicious godmother to this small town cemetery.

The site of the worst mining disaster in Ohio's history.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

An overgrown collection of miniature buildings still stand as evidence of one couple's obsession with The King.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

A historic coal mine that doubles as a museum and tourist attraction.

This abandoned amusement park was built on a site with a dark history.

A park and memorial dedicated to the victims of the deadliest school massacre in American history.

Housed in the university planetarium, the thousand-strong collection of tiny towelettes includes a used one from the hosts of Car Talk.

Trade in that pesky human soul for cold-hard circuits.

These gardens recreate unique and endangered Michigan habitats.

Once the tallest building in Detroit, this Gothic church houses some of the oldest stained-glass windows in the country.

This railway-turned-greenway provides a pedestrian link in downtown Detroit and celebrates urban artwork.