Mill Ends Park, Portland

Oregonian columnist Dick Fagan often wrote that this charming little park was "where the leprechauns west of Ireland gather." He planted the tiny garden below his office window in 1946, and stories vary as to why. Some say a light pole used to sit in the hole. Others claim it was an ordinary pothole. Either way, Mill Ends Park, which measures four by three by six feet, holds the title of the World's Smallest Park, and it holds a small place in Portland's history as well.