From historic trees to tile roofs, from the Navy Yard to Nicetown, the Preservation Alliance for Greater Philadelphia has announced 21 projects, people, and community groups from across the region to receive this year’s Preservation Achievement and Special Recognition awards at an event on May 15.

[Included in the list of honorees is the Pennsylvania State Office Building (1400 Spring Garden Street) pictured above.]

(via PlanPhilly | 2013 Preservation Achievement Award Honorees)

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