A popular 19th-century natural landmark is now hidden within a sprawling forest.

Rock face that shares a name with Mary Shelley's famous doctor.

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

You can take a class, browse the library, or visit the lavish lair of an international men's humor society.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

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

Cemetery featuring rare glass-fronted columbarium.

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

Chicago's North Park Village was once the largest municipal sanatorium in the country.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

Assemble a masterpiece at the first and only North American school exclusively dedicated to mosaic art.

Medical museum focused on antique anesthesiology equipment.

Shop of curiosities with a dinosaur museum tucked in its basement.

Grand opera on a miniature scale.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

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

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

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

The only Frank Lloyd Wright-designed structure in the architect's hometown.

Homemade outdoor church and sculpture garden decorated with glass shards.

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

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

An oddly poignant roadside attraction celebrating American folklore.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.