Stillwater Washington County historic courthouse with brick facade, aerial riser

stillwater washington county historic courthouse brick facade minnesota 1870s courthouse st croix valley italianate style sightseeing aerial riser sunset drone view historic structure augustus f knight historic courthouse washington county courthouse united states saint croix river zions hill cupola dome national register of historic places architecture augustus knight design venue landmark discover stillwater midwest building exterior aerial drone flight fly high angle monument iconic attraction tourist attraction tourism travel point of interest washington county government 101 west pine street historical landmark st croix