COSI isn’t just for kids! COSI hosts monthly COSI After Dark, adult-only, after-hours events to let the adults have the run of the place.  This event feature exhibits, concessions and cash bar, and fun! Tickets make a great gift! On Thursday, March 12, 2026, COSI turns into a 16th century spectacle with COSI After Dark: Knights … Continue reading COSI After Dark: Fun for adults only! Knights at the Museum – Mar 12