Secret Swing.

Quite possibly the last cross all humans will ever see.

The world's tallest statue of an American hero.

The world's only museum devoted solely to the art and collection of action figures.

World's smallest skyscraper, the product of a remarkable con.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

A mysterious drive-in nestled in the forest that leaves little to the imagination.

A small "palace" and museum made of, and devoted entirely, to salt.

A modernist landscape of water and sci-fi concrete.

It specializes in outsider art and artifacts of secret societies.

Cockroach Museum features roach celebrities and live hissing cockroaches.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.

A master plumber has turned his love of art and toilets into a folk museum that's not taking the piss.

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

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

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

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

Free public park and gardens filled with peacocks and peahens.

A former electrical substation is now home to an eccentric junk art masterpiece.

DIY collection of eclectic holdings.

One part antique store, one part curiosities hodge-podge.

Continuing the tradition of the dime museum in style.

This failed condo development was reborn as a street art hub.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.