Exhibitions 18 Description and travel 17 History 17 Travel 8 Architecture 5 Buildings, structures, etc 3 Descriptions et voyages 3 more ... Ethnic groups 3 Maps 3 African Americans 2 Art collections 2 Artists 2 Catalogs 2 Centennial Exhibition (1876 : Philadelphia, Pa.) 2 Centennial Exhibition, 1876 2 Collectors and collecting 2 German Americans 2 Photography 2 Private collections 2 Social life and customs 2 Sources 2 Watercolor painting 2 Architecture--Pennsylvania--Philadelphia--History 1 Art 1 Art Exhibitions 1 Art and artists--Pennsylvania--Philadelphia 1 Art museums 1 Art patronage 1 Art, American 1 Art, Ukrainian 1 Artists--Pennsylvania--Philadelphia--20th century 1 Artists--United States 1 Bildnismalerei 1 Book collecting 1 Book collectors 1 Centennial celebrations, etc 1 Cities and towns 1 Conservation and restoration 1 Conservation et restauration 1 Craft festivals 1 less ...