"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

A toxic ghost town sitting atop a massive coal fire.

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

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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

Amateur taxidermy museum known for its large collection of white squirrels.

Hidden in magnificent rolling countryside, see what may be the largest modern stone circle in the world at Wisconsin's very own "Stonehenge”

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

A former barn converted into a massive train diorama.

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

Homemade outdoor church and sculpture garden decorated with glass shards.

A fairytale art house in the middle of Wisconsin.

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

"Iron Age" creatures fill this huckster's rusted metal sculpture garden.

Five acres of divinely inspired folk art.

The center of the only hemisphere that awards visitors with a commemorative coin.

Vikings and Evangelicals have both had a hand in this replica medieval church.

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

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

A Hawaiian stairway to heaven—that you can't climb.

A model of a galactic embassy is hidden in plain sight along the highway, proposed by a UFO religion to find the aliens that created life on Earth.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

Pizza with a side of fine art.