City Hall, Philadelphia

Architekturmuseum Der Technischen Universität Berlin | DataCite | 2020

Going First Class An excellent example of adaptive reuse, the Philadelphia City Hall Annex is transformed into a Marriott Courtyard Hotel

British Library Online Contents | 2001

Philadelphia City Hall subway station

Gardner, Harry | Engineering Index Backfile | 1919

Discussion on Tower of Philadelphia City Hall

Wilson, Joseph M. / Hill, George / Grimm, C. R. et al. | ASCE | 2021

Energised Courtyard... Courtyard by Marriott, Keral

British Library Online Contents | 2015