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.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Tiki luxury on Nob Hill.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

The trials and tribulations of marking Poe's grave.

The largest earthwork effigy in the world.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

Quite simply the largest tree in the world (by volume).

Featuring a casually threatening atmosphere along with dessert and coffee to die for.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

Take a drunken tour inside the world's largest known geode.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

Where beautiful signs live on forever.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A monument to the art of slicing people open.

San Francisco's newly reopened hands-on science museum.

An underwater city for the dead.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Odd outsider art installations surround a Gold Rush-era ghost town.

A swing to dangle you off the very edge.