This Florida sinkhole hides a rainforest-like micro-environment in its depths.

From working out of his garage to the James Beard semifinals, one Tucson baker has kept his fan base—and his grains—local.

The highest point in Oklahoma used to be a lawless outlaw's paradise.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

Some of the most unusual (and in some cases, disgusting) flavors of soda imaginable.

The first privately-owned space capsule to orbit and land carried a secret payload: a wheel of Le Brouère.

Rising out of miles of farmland, these buttes are sometimes called the world's smallest mountain range.

A few iconic structures are all that remain of America’s first outdoor shopping mall.

The words of the neighborhood's most famous poets adorn four concrete walls.

A 19th-century cabin built into a hollowed-out Sequoia tree.

The sea once considered an ecological wasteland is now called "crown jewel of avian biodiversity" by scientists.

Hike amid the palm trees that thrive among Southern California's Indio Hills.

Four hundred granite steps were built into this massive rock by the National Park Service.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

Inmates dig the graves at the largest prison cemetery in the U.S., the final resting place of both cowboys and Indians.

$10,000 won in a poker game in 1884 allowed James Draughon to build this intriguing home.

Beauty and history abound in this remote West Texas canyon.

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

A grove of colossal man-made flowers built to collect the sun's rays.