For enthusiasts of military history and architecture, Washington State is an absolute treasure trove of sites and installations waiting to be explored. A system of coastal defenses began to develop prior to the territorial period, while interior forts connected to the Columbia River and served the interests of pioneers coming to the region. The majority of Washington’s pre-Civil War buildings are located on historic military sites, including Fort Walla Walla (Tour 2a) and Fort Steilacoom (Tour 8c). From a stand alone architectural perspective, the best bang for your buck, in our opinion, is the Commanding Officer’s Quarters at Fort Simcoe State Park – a wonderfully preserved board and batten gothic revival cottage (Tour 7b). And as it is run by State Parks, admission is free: you can save your buck!