A wall of chewing gum moonlights as collective art.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

The yawning maw of this pagan visage is said to bite off the hands of liars.

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

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

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

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

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

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

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

A beautiful geyser under environmental threat.

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

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

An ancient capital city that dates back 3,000 years and harbors many surprises.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A giant Troll lurks under one of Seattle's oldest bridges.

A walk through the historic city center, under the streets of Seattle.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A bizarre house filled with an astounding array of collections.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A snapshot of the city's fascinating voodoo culture.