Island where motor vehicles are banned -- home to the only carless highway in the United States.

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

A Wild West jailhouse that slid down the mountainside.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

Cows on a ranch are commonplace, scattered cow bones everywhere? Not so much.

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

Most-visited and most-photographed slot canyon in the American Southwest.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Five candy-colored villages on the Italian Riviera.

A lover's walk between hilltop towns, decorated with graffiti love notes.

Fortified medieval tower house with lovely roof garden.

This striking art museum holds an amazing series of curiosity cabinets.

A massive underwater sinkhole made famous by Jacques Cousteau.

An isolated dive site teeming with cnidarians.