A popular swimming hole that hides one of America's most deadly diving spots.

An emerald-green grotto just a short trip from Austin.

A museum dedicated to the alleged Roswell Incident.

Storybook cottage in Beverly Hills was once the site of 1920s silent film studio, affectionately known as "The Witch's House."

A building so large that it has its own weather.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

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

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Turning night into day in Victorian-era Austin to thwart a serial killer.

Mysterious glowing orbs float through the desert night.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

The world's tallest statue of an American hero.

Free public park and gardens filled with peacocks and peahens.

Continuing the tradition of the dime museum in style.

Crumbling hotel echoes with the sounds of the '30s.

This golf ball–shaped former desert real estate office now houses a UFO museum.

A second generation sun-powered marvel lights up the night.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

A spiritual vortex among the red rocks in Sedona.

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