This ostentatious Italianate palace of an Oklahoma billionaire is filled with several themed mini-museums.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

This pebble beach is so beautiful that taking its rocks is against the law.

Gambling, boozing, and yodeling animals cover the walls of this dive bar cum natural history museum.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

Robots, lasers, and whoopee cushions, oh my!

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

World's first "penitentiary," meant to be humane, drove men insane.

A layered tribute to the work of mosaicist Isaiah Zagar.

Self-built house and sculpture park where the creator can still be seen in a glass coffin.

This historic theater's pipe organ still accompanies silent films just like it did in 1929.

Metal sculpture folk art lining the Kansas Highway.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

This abandoned prison castle has become an imposing gallery of graffiti art.

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.