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!
Photo by Robb McCormick Photography (www.robbmccormick.com)
On Thursday, December 12, 2025, get ready to party like it’s 1999 again… at COSI After Dark: Y2K!
Enjoy a night mixed with nostalgia and futuristic fun as we celebrate the turn of the Millennium! With activities like making friendship bracelets and gaming on classic consoles, this will be a night to remember! Check out special science demos, custom drinks, and awesome grub during the party, and stay until the end of the celebration for a special surprise.
There are plenty of themed activities, plus you’ll enjoy the rest of COSI, ride the High Wire Unicycle, COSI Planetarium, and drinks at the cash bar from 7-10 pm. Buy tickets early!
COSI After Dark tickets are $20 in advance here, and $30 at the door. This event is for adults ages 21 and over, only. Valid photo ID required.
Find out more details about parking, and more on the website.
Upcoming COSI after Dark Themes
- November 14: COSI-Con
- December 12: Y2K
2025
- January 9: Art of Body Modifications
- February 13: The Science of Sex
- March 13:
- April 10:
- May 8:
- June 12:
- July 10:
- August 14:
- October 9:
COSI
333 W. Broad Street
Columbus, OH 43215
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admin says
Awesome – thanks for the review!
Jonathan Strong | Big League Consulting says
I’ve attended a few COSI after dark events and I must say that they’re an absolute blast to go to! Not only are you able to view all the exhibits with virtually no lines, but you have the added benefit of cash bars at almost every turn!
Jim Morrison says
Cosi is an amazing place to go to, especially for date night!