COSI is central Ohio's most unique and versatile event location. Treat your guests to an out-of-this-world experience under the star-lit sky in COSI's Planetarium, travel back in time for cocktails in the 1890s, and watch the sunset over the Columbus Skyline. Whichever combination you choose, COSI offers a unique and stunning experience.
The Knot independently assesses vendors for this award—it’s never self-reported. We base it on firsthand experiences from real couples and guests, and they must have a 4.5-star average across 7+ reviews in the qualifying year.
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