Sue, the world's largest and most complete dinosaur skeleton.
Steve's parents visited us for a weekend, and we had the pleasure of introducing our favorite jaunts in Chicago: evening music concerts in Millenium Park, Field Museum, Nana's, the dog park with Stella, Chinatown, and even took in a drink at the Palmer House Hilton.
Updated 7/24/12: Recently, someone put this on Wikipedia. I'm so tickled! en.wikipedia.org/wiki/File:Sues_skeleton.jpg