Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

A rusted metal giant pays tribute to Birmingham’s industrial past.

148 feet long and in the middle of a verdant forest.

One person's lost luggage is another person's treasure.

The "original web site," this farm in Northern Vermont encourages orb-weaver spiders to build their daily webs, and then sells the preserved masterpieces.

One car at a time please.

Try the frozen treat that inspired Arrested Development's famous banana stand.

Each summer, the migratory bats living beneath the bypass form "batnadoes" at dusk.

More than 700 species live within this murky marvel of a swamp on California's coast.

One doctor's retirement plan included opening this award-winning Mexican-Indian eatery on the ground floor of a hospital.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

For roadside fast food, pull over at the giant orange.

This corn maze so big you may want to pack a lunch, and possibly a flaregun.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

From Japan to Italy, this California park explores the world's cultures through their gardens.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

These millipedes glow not out of attraction, but as a not-too-subtle warning.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

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

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

A "Titanic" superfan changed his name to Jack and set up this strange shrine to the blockbuster, complete with Korean food and Tarot readings.

A ghost town at the airport is now a refuge for blue butterflies.