The document provides information on several family-friendly Halloween events happening in October in the St. Louis area. The Union Station Halloween Experience allows guests to wear costumes and go through historic train cars decorated with Halloween themes. The Science Spooktacular is a free, candy-free event featuring Halloween-themed science activities and learning about real-life "monsters." Boo at the Zoo invites guests to look for hidden ghosts while dressed in costumes and taking spooky photos. Legends & Lanterns festival offers vintage Halloween experiences inspired by history and folklore.