Is there a mysterious fossil that you found while backpacking, or a picture of the bizarre bird in your backyard? Bring in your fossils, seashells, rocks, meteorites, feathers, leaves, or photographs of mammals, birds, reptiles, fish, flowers, and insects to the Museum and have world-renowned scientists identify them! Stop by, with or without mystery objects, to see (and touch) the scientific specimens out on display.

ID Day will take place from 10 am- 2 pm in on Saturday, September 17 (a Free Admission Day for Illinois residents) at The Field Museum’s main hall (near SUE the T. rex). See you (and your unidentified treasures) there!

Click here for complete details.