Celebrate writing, dinosaurs, and old-timey trains

Do: Indulge your inner bookworm at the annual American Writer’s Festival, May 15 at the Chicago Cultural Center. Do: Ooh and ahh at prehistoric sharks, reptilians, and aquatic dinosaurs at the Field Museum’s new "Jurassic Ocean" exhibit. Do: Get historic in Pullman at vintage train-themed Railroad Days, running May 14-15.