Beginning at the historic Palmer House, we saw the remarkable vaulted ceiling and Tiffany chandeliers. The peacock doors and architectural details were informative and exciting. Then we went walking underground, discovering the practicality of the underground walkways, their use in movies, and the highlights of coming above ground to the Chicago Cultural Center and more Tiffany beauty. We would have discovered none of this on our own. Colm opened the doors and our eyes.