City of PittsburghPittsburgh City Designated Historic DistrictsArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/d6373af0b9e349b38a40ea6c99224730_0engPittsburgh Open DataPublicCity Designated Historic Districts [Pennsylvania--Pittsburgh]Web servicesPennsylvania--PittsburghPennsylvaniaLast Modified: 2025-10-07