The world's second largest single-dish radio telescope, once used to contact E.T.

The world's longest known cave system.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

One of the largest crucifixes in the world stands 55 feet tall in a secluded, wooded area of northern Michigan.

Huge abstract sculptures of the Puerto Rican Flag.

This striking art museum holds an amazing series of curiosity cabinets.

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

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

The 606 is a decade in the making.

An eccentric park and pool.

A Chicago Movie Palace Lost to Time.

Landmark Chicago building narrowly avoided destruction.

Where old school Polish Chicago and young hipster Chicago live side by side.

Location of the Real World's disastrous, and protested, eleventh season.

Once an ornate movie theater remade by Catholic Charities.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

A European-style bath house in Chicago.