Odd outsider art installations surround a Gold Rush-era ghost town.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

The remnants of an early American attempt at missile defense.

These former Cold War launch sites have been preserved for tourists to see where the button might have been pushed.

One of the few surviving examples of the first lock and dam system built on the Ohio River.

Admire the art and then buy a raccoon skull cleaned by flesh-eating beetles.

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.

An unusual assortment of art, furniture, and other curiosities.

A museum within a museum, devoted to history's most questionable medical devices.

An architecturally-focused antique shop.

A museum of the dime museum that features weird entertainments of yesteryear, from feejee mermaids to flea circuses.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

This deceivingly ordinary warehouse hides an enormous collection of pop culture treasures.

Part of a secret 1970s nuclear defense program is now open to the public.

This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

This NASA test station is home to some of the world’s largest and most powerful space environment simulation facilities.

The world’s largest combined collection of U.S. and Russian aircraft got its start in a poultry building.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

The unique collection includes bronze cast handprints of some of America's most famous astronauts.

The site of Neil Armstrong's first flight is marked by a full on replica of the moon landers.

A building so large that it has its own weather.

The final resting place of a space program monolith.

An abandoned aircraft sits submerged in a lake in the Alaska wilderness.