I know you'll find this implausible but it is legitimate: Dublin, Ohio (a suburb of Columbus) holds the title of second largest Celtic festival IN THE WORLD. Yes, the world. We are second only to Milwaukee, WI.
The Dublin Irish Festival (a.k.a. DIF) is particularly special to me because I went for the first time in 1999, on my third date with he who is now known as my Spouse. I bought my first item with a trinity knot (more on its importance to come). Afterward, in the parking lot of Coffman High School, my now-husband kissed me for the first time. To quote Tom from "Four Weddings and a Funeral", thunder bolt city.