Description and travel Travel 21 Descriptions et voyages 14 History 12 Architecture 6 Historic buildings 6 Streets 6 more ... Business enterprises 4 Commerce 4 Real property 4 Tourism 4 Directories 3 Economic conditions 3 Periodicals 3 Social life and customs 3 Buildings, structures, etc 2 Cemeteries 2 City and town life 2 Cries 2 Landscape architecture 2 Merchants 2 Museums 2 Occupations 2 Population 2 Shopping centers 2 Shopping malls 2 African Americans 1 Art 1 Art and history 1 Automobile travel 1 Birds 1 Buildings 1 Chestnut Street 1 Children's literature 1 Church buildings 1 Cities and towns 1 City Hall (Philadelphia) 1 Collectors and collecting 1 Congresses 1 Dwellings 1 less ...