COSI is closed for annual cleaning and maintenance September 2 - September 19. We will reopen on September 20 at 10:00amClick here for hours and rates.
  • Sherlock
  • Adventure
  • Membership
  • Pandas
  • D-Day: Normandy 1944
  • Planetarium
  • Videoconferencing
  • Live Shows

Featured Offerings

FFN

Family Friday Night

August 29th: COSI offers extended hours and price reduced admission to families so you can visit, learn, and play late! General admission is only $10.95 after 5pm.

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Summer Movie Series

Summer Movie Series

Starting June 13th, experience your favorite cult classics, sci-fi thrillers and fantasy flicks in COSI's new National Geographic Giant Screen Theater!

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From the calendar