This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

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

A natural gas leak provides a flickering flame beneath a waterfall.

Rainbow-hued local gem in Venice.

One part antique store, one part curiosities hodge-podge.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

Canyon walls shrouded in ferns.

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.

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

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

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

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

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

An acoustic anomaly with a mysterious cause.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

A modernist landscape of water and sci-fi concrete.

This frequently-photographed waterfall takes only a short hike to visit.

The magic's in the hole!

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

Where beautiful signs live on forever.

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