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

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

Home to a protest movement, a bombing, and a dramatic change in labor history.