I have always been fascinated by fossils. Growing up (and studying geology) in Ohio, I spent hours searching for brachiopods and trilobites in the state's dolomites and limestones. As an adult, I've not had many chances to collect fossils, but I have started to buy unusual pieces for my collection.
Most of my collection fits (admittedly crowdedly) on one shelf.
My brother in law gave me a fossil crab for Christmas. And that's another Isotelus to the left of the crab.