 300 million-year-old fossils from vertebrae-shaped creatures called Archimedes in the halls leading to the gallery's west building atrium. Oh, my goodness. It's quite large, isn't it? That is cool. Chris says he hopes these fossil expeditions will encourage others to slow down and take in their surroundings in this historic city of ours more often. It is a scavenger hunt. It's very cool. Now I'm looking at all the pillars and trying to see if I can find more fossils as I'm walking around the corners. Until we make our next discovery in the district, Matt Koufax.