Historic sites History 32 History, Local 10 Monuments 8 Social aspects 8 Battlefields 7 African Americans 6 more ... Historic buildings 5 Race relations 5 Slavery 5 Conservation and restoration 4 Fugitive slaves 4 Historic preservation 4 Memory 4 Travel 4 Underground Railroad 4 Antiquities 3 Archaeology and history 3 Description and travel 3 Historiography 3 History, Military 3 Interpretive programs 3 Political aspects 3 Presidents 3 Public history 3 Campaigns 2 Collective memory 2 Excavations (Archaeology) 2 Fortification 2 Gettysburg, Battle of, Gettysburg, Pa., 1863 2 less ...