A six-story-tall golden pyramid, surrounded by a moat.

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

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

This monolithic statue was erected in honor of Chief Black Hawk (even if it wasn't made to look like him).

The oldest house in Chicago certainly doesn't look the part and there are some who say it doesn't deserve its title either.

The remains of a Rockefeller's lush Italianate estate hidden in the underbrush on the coast of Lake Michigan.

Medical museum focused on antique anesthesiology equipment.

Tour the luxe "glass cage" that inspired and unnerved the architecture world upon its debut.

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

A tribute to one granddaughter's old apartment which now represents the whims of each visitor.

This sprawling mini-golf empire is an impressive testament to a disappearing attraction.

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

Take a break from all the boring business of death at this funeral home mini-golf course.

The face of a woman pushes its way through the earth.

World's second largest particle accelerator, where nature reveals its secrets.

This softly rounded mansion was built without corners not to avoid evil spirits, but to make them more comfortable.

This elaborate Hindu temple is located in a Chicago suburb, but looks like it was transported directly from India.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.

A replica viking ship from the Chicago World's Fair is still in dry dock in an Illinois park.

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

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

This historic store hides a museum exhibiting a shoe-sizing x-ray machine and a pair of kicks that once belonged to the world's tallest man.

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

Museum dedicated to the art of cutting and polishing stones.