This Mediterranean castle was built for a millionaire and his giant dog.

A Museum of Holography frozen in 1974.

The world's third-largest scale model of the planets.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

One of the first historical sites of an alternative universe was installed in the town of Paris, Illinois—which is now home to an annual spelling bee of Kcymaerxthaereal words.

A onetime gangsters' hideaway where you can dine on steaks, fine wines, and cigars just like they once did.

The world's only known button museum.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

Cemetery featuring rare glass-fronted columbarium.

You were once able to challenge a chicken to tic-tac-toe at this park, which is now converted into the Aikman Wildlife Adventure.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

Cold War missile launch site which has been converted to a public park.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

Despite its name, this fast food museum is actually a replica of the ninth McDonald's store.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

This abandoned 19th century orphanage started as a boarding school for children of Civil War veterans.

In a grove of fast growing walnut trees outside Paris, Illinois, a marker shares the story of a fictional road building culture.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

One of the most powerful computers in the world can be visited by anyone who wants to experience more computing than they can handle.

What may be America's largest classic video game arcade lurks inconspicuously in a Chicago suburb.

Even with only two residents and one building, this tiny Illinois town is famous for its burgers.

More than 8,000 drinking jugs say “Cheers!” to a guy named Toby.