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 11, 2025, things are getting glamourous with COSI After Dark: Roaring 20’s.
Arrive in style with a red carpet welcome, setting the tone for a night steeped in charm. Inside, sip on prohibition-style cocktails and try your luck at casino tables as you explore COSI’s classic exhibits. Jazz music will fill the air while swing dance instructors get the crowd moving, inviting you to dance beneath a golden atmosphere. Relive the glamour and exuberance of the Jazz Age.
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!
Tickets for COSI After Dark tickets are $20 in advance, and $30 at the door (NOTE, some events have a higher ticket price due to additional activities). 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 2026
- January 8: Science Rave
- February 12: Cocktails and Chemistry
- March 12, 2026: Knights at the Museum
- April 9, 2026: Stoned Science
- May 14, 2026: Creatures & Cryptids
- June 11, 2026: Masquerade Ball
- July 9, 2026: Rhythm & Brews
- August 13, 2026: Wild, Wild, West Broad
- October 8, 2026: Halloween Tattoo Carnival
- November 12, 2026: Game On!
- December 10, 2026: Blizzard Bash
COSI
333 W. Broad Street
Columbus, OH 43215
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Check out our list here!
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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!