If I wanted to show my friends a futures trading floor so that they see it the roots of today's electronic trading, where in the U.S. could I take them? What markets/exchanges still trade in pits AND allow visitors?
Chat with exchange first. CBOE is the best show, but you'll need someone to accompany you and sign you on.
The ED pit during NFP was the greatest show on Earth. It made the pit scene in Trading Places look tame by comparison.