COSI Columbus COSI Columbus Search | Advanced Search | New Members | Coupons and Discounts | All Categories   Family, Community & Non-Profit >> Museums, Historical Sites & Similar Institutions COSI Columbus 333 West Broad StreetColumbus, OH 43215 | map | directions (614) 629-3114 | fax: (614) 228-6252 Visit Site Need to update your categories or expand your listing? Or want to learn how your business can become a part of the Chamber? Contact us at membership@columbus.org for assistance.