Denver Oktoberfest in Denver
Denver hosts one of the larger Oktoberfest celebrations outside Germany, cited in general Oktoberfest references as drawing more than 450,000 visitors, historically centered on Larimer Square with German beer, food, and Bavarian entertainment. Current organizational details are harder to confirm, as the event's longtime web domain now redirects to an unrelated parked page.
German immigration shaped many American cities in the nineteenth and early twentieth centuries, and several of those cities eventually built large annual Oktoberfest celebrations as a way of publicly marking that heritage.