Historic sites History 2,886 Law and legislation 2,336 Conservation and restoration 1,995 Antiquities 1,535 Historic buildings 1,402 National parks and reserves 1,399 more ... Lieux historiques 1,395 Cultural property 908 Protection 748 Historic preservation 596 Description and travel 585 History, Local 532 Excavations (Archaeology) 514 Monuments 504 Histoire 461 Management 401 Conservation et restauration 395 Buildings, structures, etc 364 Homes and haunts 345 Architecture 341 Archaeology 325 Boundaries 284 Battlefields 272 Travel 272 Collection and preservation 265 Trails 249 Buildings 238 Interpretive programs 238 African Americans 205 less ...