A place to eat for on-the-run agents and espionage enthusiasts.

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

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

The only Bahá'í house of worship in North America and one of only a handful worldwide.

The final resting place of the world's first nuclear reactor.

A small abandoned and abused cemetery that has become a magnet for ghost hunters.

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

Cemetery featuring rare glass-fronted columbarium.

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

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

This shrine to film's most iconic wasteland wanderer is located in the very outback where the movies were shot.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

Underneath the city that invented pilsners are a series of historic tunnels that have been storing beer for centuries.

Ham is serious business at the Prosciutto Museum-Serious, delicious business.

Ride the subways of yesteryear.

On Japan's Tashirojima Island, cats are king.

This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.

A strange rock in Chicago marks the spot where a tree once stood in honor of the 18th President.

One of the few surviving "Wigwam"-themed motels.

This spa theme park lets its guests take a dip in pools of coffee, wine, or ramen broth.

This secret cemetery where no flag is allowed to fly holds the bodies of American soldiers convicted of heinous crimes during WWII.

"No writer ever gave more to a city and got back less.”

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.