This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

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

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

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

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.

This super steep hike ascends 2,000 feet in less than a mile.

The largest source of fossilized insects anywhere.

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

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

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

This missionary's legacy looms large over the Upper Peninsula of Michigan—literally.

This little barrel-shaped cottage by Lake Superior was once a cartoonist's summer retreat.

"The Most Boring Road in the State."

A bizarre house filled with an astounding array of collections.

One of just a few cities in the world to base their center of government on an island. Others: Paris and Osaka.

A place of great reverence for Trekkies everywhere, a hero's future birthplace.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

Meet manatees face-to-face at this zoo for native species.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

Public works and national defense project meant to carve a canal all the way across the state of Florida.