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, February 12, 2026, science meets the dance floor with COSI After Dark: Cocktails and Chemistry.
Experience the ultimate fusion of flavor and innovation at COSI After Dark: Cocktails and Chemistry on February 12! A dozen of Columbus’ top mixologists will compete in a science-infused cocktail invitational, crafting imaginative drinks that blend creativity, chemistry, and competition. Guests will enjoy included samples from all 12 contenders and cast their votes to crown the evening’s champion.
Featuring award-winning local spirits and cutting-edge techniques, this 21+ event transforms COSI into the city’s most spirited laboratory, and an unforgettable night that’s perfectly mixed for your Valentine’s week. Due to drink samples, tickets are $37 for this event.
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 most 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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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!