Wikimedi'Òc

Beaver County Courthouse, Pennsylvania.jpg - Nyttend

Butler Armory front.jpg - Nyttend

New Castle Armory.jpg - Nyttend

Armory Latrobe Pennsylvania.JPG - Canadian2006

WTP D03 AMP 1.jpg - Mblumber

Liberty School, West Mayfield.jpg - Nyttend

Philly YMCA.JPG - Smallbones

BellTel 1835 Arch.JPG - Smallbones

1900 Rittenhouse Sq.JPG - Smallbones

Chateau Crillon 2.JPG - Smallbones

Blair-building.jpg - Fredtorrey~commonswiki

Alcoa Research Laboratory entrance interior view (New Kensington PA).jpg - Fitzed

Bok School Philly.jpg - Smallbones

Sun Oil Building Philly.JPG - Smallbones

Levering School Philly.JPG - Smallbones

Lewis Tower Philadelphia.JPG - File Upload Bot (Magnus Manske)

Jefferson in Philadelphia.jpg - File Upload Bot (Magnus Manske)

Penn RR Building, Philly.jpg - File Upload Bot (Magnus Manske)

Philadelphia, PA Third Philadelphia Naval Hospital no date (circa 1940s).jpg - Slick-o-bot

Beury Building, Philadelphia.jpg - File Upload Bot (Magnus Manske)

Bartram HS Philly.JPG - Smallbones

Dunbar School Philly.jpg - Smallbones

Meade School Philly.JPG - Smallbones

Vaux Jr HS Philly.JPG - Smallbones

Grant Building Pittsburgh.jpg - GrapedApe

Hopkinson School Philly.JPG - Smallbones

Dobbins School Philly.JPG - Smallbones

Finletter School Philly.JPG - Smallbones

Fulton School Philly.JPG - Smallbones

SedgwickToday.jpg - File Upload Bot (Magnus Manske)

NixFedBldgPhilaMailBas1.jpg - HarringtonSmith

TimesBldgSuburbanSquareArdmorePA.jpg - HarringtonSmith

Clearfield Armory Apr 10.JPG - BotMultichill

Montgomery Ward Building Lewistown PA Apr 10.JPG - BotMultichill

ConcordElementarySchool.jpg - BotMultichill

ProspectJuniorHighandElementarySchool.jpg - BotMultichill

LincolnElementarySchool.jpg - BotMultichill

LemingtonElementarySchool.jpg - BotMultichill

DavidOliverHighSchool.jpg - BotMultichill

Post Office Milton PA.jpg - Smallbones

Kirby Theater 71 PS WB PA.jpg - Smallbones

Municipal building in Brownsville, Pennsylvania.jpg - Nyttend

Altoona Armory Apr 12.JPG - Pubdog

Montrose Theater Montrose Historic District Aug 09.jpg - Pubdog

Art Institute of Philadelphia PA.jpg - Faolin42

Clock at 30th Street Station.JPG - CTLiotta

Harrisburg 19th Street Armory.jpg - Nyttend

Letsche Elementary School, Bedford Avenue End, Hill District, 2015-06-20. 01.jpg - Cbaile19

Municipal Auditorium and Convention Hall, 34th Street, below Spruce, Philadelphia, Pa (61770).jpg - Junkyardsparkle

United States Post Office, Wilkes-Barre, Pa (63531).jpg - Junkyardsparkle

YMCA Philadelphia building.jpg - Difference engine

Residence Inn by Marriott Philadelphia.jpg - Difference engine

Warren, Pennsylvania - 20210912 - 03 - Blair Corporation building.jpg - Andre Carrotflower

The Grayco Apartments, North Street, Harrisburg, PA.jpg - Xnatedawgx

View up facade of Market Street National Bank Building, Philadelphia, PA.jpg - Daniel Case