The 1920s - 1940s are most interesting to me. There was the Roaring Twenties, Black Thursday, the Depression, Volstead Act, Women's History; the list goes on and on. I also find the Gregorian, Victorian, Edwardian era interesting as well. I hope you enjoy your visit!
The Rideau Canal in Ottawa, Canada, with Parliament Hill and Union Station visible in the background. c.1938, photograph by Conrad Poirier, Wikimedia Commons