Don & Charlie's, Chicago

For one afternoon each year, Lettuce Entertain You transforms one of its famed eateries into a mecca for brides-to-be, collecting the wares of both local and national retailers. Ladies linger over tables laden with dresses and invitations—categorized into vignettes such as elegant and vintage—as gown experts divulge their wisdom. To avoid being cut out of wedding photos, male counterparts sequester themselves in the Groom's Room, where man-friendly vendors toss out wardrobe and preening tips. Lettuce Entertain You disperses appetizers and drinks from a handful of their own top-rated eateries to prevent patrons from drooling over the dossiers of custom cake.