A frighteningly fun time at COSI

Enjoy COSI unaccompanied by children at the 21-and-older event COSI After Dark: Fright Night from 7 to 10 p.m. Oct. 14. Besides the opportunity to explore the building at leisure, the event offers the chance to explore a time-traveling haunted house, dance to the “Monster Mash” and other timely tunes with DJ Josh Staley and enter individual and group costume contests. Food and craft beer will be on available. Tickets cost $20 in advance and $30 at the door. Masks are required except when eating and drinking. (614-228-2674, www.cosi.org)