This incredible collection of vintage pinball machines can be played at 25 cents a pop.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

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

The miraculous hydrant that saved the Mission District in 1906.

An eatery for UFO seekers on the Extraterrestrial Highway.

A health museum containing a 27’’½-foot intestine.

The unedited photograph called "Bliss" has graced the screens of over a billion computers.

A little piece of Paris in the sultry south of the U.S.

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

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

Tiny historical streetcars wind through a small scale version of Crescent City in this whimsical train garden.

World's largest collection devoted to one fruit.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

A humid oasis combines recreation with exploration in a unique underwater cavern.

A luxuriant botanical garden below sea level.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

A promotional sun clock on the site of San Francisco's great raceway.

At the "Garage Mahal" in Houston, car culture is about more than just driving.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

Miniature art that tells an enormous story.

The world's largest military aircraft cemetery.

An oddities shop packed with twisted treasures inspired by Oscar Wilde and Edgar Allan Poe.