A few years ago I was in Cleveland, Ohio, and stopped by Great Lakes Brewing Company for a tour! This small operation has been in business since 1988 and sells their beers primarily in the Midwest. The tour is free (samples will technically cost you a quarter though, as the Ohio law forbids them from giving out free alcohol).*
Site: Great Lakes Brewing Company
Location: 2516 Market Avenue, Cleveland, Ohio 44113
Hours: Free brewery tours are available on the hour on Fridays from 5:00 PM – 9:00 PM and Saturdays from 1:00 PM – 8:00 PM. (Subject to change if private tours are scheduled).*
Date: August 18, 2007
* Update, July 2017: Currently Tours are offered Fridays and Saturdays from 12PM to 8PM and meet at 1951 West 26th Street, Suite 100. Tours are $5 and include four 5 oz. beer samples of your choice.