City planning 24 History 9 Social conditions 6 Streets 6 Buildings, structures, etc 3 Cities and towns 3 Philadelphia (Pa.)--City planning 3 more ... Planning 3 Architecture 2 City planners 2 Cultural policy 2 Description and travel 2 Economic conditions 2 Forecasting 2 Housing 2 Mayors--Pennsylvania--Philadelphia 2 Municipal officials and employees--Pennsylvania--Philadelphia 2 Philadelphia (Pa.)--City government--20th century 2 Philadelphia (Pa.)--Civic improvement 2 Philadelphia (Pa.)--History--20th century 2 Philadelphia (Pa.)--Officials and employees 2 Philadelphia (Pa.)--Politics and government--20th century 2 Philadelphia (Pa.)--Social conditions--20th century 2 Politics and government 2 Public works 2 Social life and customs 2 Urban renewal--Pennsylvania--Philadelphia 2 Accounting 1 Art 1 Art and state 1 British 1 Business enterprises 1 Campaign management--United States 1 Capitols 1 Cartes 1 Charities 1 Charities--Pennsylvania--Philadelphia 1 Chinese 1 Chinese Americans 1 Church buildings 1 less ...