Today's Hours: 
10am - 5pm
Today's Hours: 
Today's Hours: 
Today's Hours: 
10am - 5pm
Today's Hours: 
10am - 5pm
Today's Hours: 
10am - 5pm
Today's Hours: 
10am - 5pm

COSI is now closed

Special Offers Just for COSI Members

  • COSI Members save $5 on a Membership to Edheads

    COSI Members save $5 on a Membership to Edheads

    COSI Members can save $5 on a membership to Edheads by using the promo code COSI15. Edheads is an online educational resource that provides science and math games and activities that promote critical thinking. At Edheads your student can become a surgeon, engineer, meteorologist and more! While engaging in the fun of ‘test driving’ new careers in online simulations, they will be practicing the skills and applying the knowledge they learn in school. Edheads is a great way to bridge the gap between school and work, increasing your student's interest in future careers. To learn more and to purchase an Edheads membership, please visit

    Offer expires October 31, 2017.

    Learn More

  • ASTC & ACM Members

    ASTC & ACM Members

    Free exhibits admission with a current ASTC membership card; 50% off exhibits admission with a current ACM membership card. Maximum of 2 adults and 4 children admitted free to COSI for reciprocal ASTC members; 50% ACM discount is valid for up to six people. Science centers within 90 miles of one another are excluded from the program unless lifted by mutual agreement. Please call ahead to verify that you are eligible for the reciprocal admission benefit.

  • Special Reciprocal Admission at the Cincinnati Museum Center

    Special Reciprocal Admission at the Cincinnati Museum Center

    Offer Ends: July 01, 2018

    As of July 1, 2016, reciprocal benefits for COSI Members at the Cincinnati Museum Center’s Duke Energy Children’s Museum (located in Cincinnati, Ohio) have temporarily changed. All COSI Members who visit the Cincinnati Museum Center’s Duke Energy Children’s Museum will receive free admission. To take advantage of this benefit, present a current COSI membership card and photo ID at the Duke Energy Children’s Museum. The admission benefit extends to two parents and up to four children under 18 living in same household OR two grandparents and up to four grandchildren under 18. For more information on visting the Duke Energy Children’s Museum, visit or call 513.287.7000. COSI Members also receive discounts on admission to special exhibitions, retail store purchases, and food purchases at the Cincinnati Museum Center. This offer is valid through July 1, 2018.

    COSI Members should note that as of July 2016, the Cincinnati Museum Center’s Museum of Natural History & Science and the Cincinnati History Museum are closed for an extended period of time for renovation.

  • Columbus Member Advantage

    Columbus Member Advantage

    Offer Ends: December 31, 2017
    Show Your COSI Membership Card and Save!

    As a COSI Member, you can now enjoy Buy One, Get One Free admission to select Columbus museums and attractions through the Columbus Member Advantage program. No coupon is necessary. Simply show your valid COSI Membership card each time you visit! Columbus Member Advantage partners for 2017 include:

    · Columbus Museum of Art
    · Columbus Zoo and Aquarium
    · Franklin Park Conservatory and Botanical Gardens
    · Ohio History Center & Ohio Village
    · Wexner Center for the Arts

    Important Terms & Restrictions: Receive up to two free general admissions of equal or lesser value per visit when purchasing two regular-priced general admission tickets. Tickets must be purchased from the admissions area of the facility you are visiting. Cannot be combined with other discounts or offers. Not valid on prior purchases. No rain checks or refunds. Some restrictions may apply. Offer expires December 31, 2017 unless otherwise noted.


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