{"nrhp_refnum":"73001587","name":"Rotunda of the Pennsylvania Railroad Station","other_names":[],"category":"structure","location":{"address":"1100 Liberty Ave. at Grant St.","address_restricted":false,"city":"Pittsburgh","county":"Allegheny County","state":"PA","lat":40.444113506000065,"lon":-79.99243114799998,"geom_source":"nps_gis"},"listed_date":"1973-04-11","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Transportation","Architecture"],"significance_levels":["national"],"summary":{"what_it_is":"The Rotunda, or cab stand, of the Pennsylvania Railroad Station in Pittsburgh, Allegheny County, Pennsylvania. It dates from 1901-1902 and was designed by D. H. Burnham.","why_significant":"The nomination argues the Rotunda is one of the few remaining examples of a distinctive architectural style of the Railroad Age, and that the municipal gateways that greeted travellers in major cities have largely been destroyed. It is described as an excellent example of turn-of-the-century exposition architecture and as one of Pittsburgh's chief claims to architectural distinction. Its preservation is argued to serve as an example of a vanishing style and a reminder of Pittsburgh's early role as a transportation center.","narrative":"Built in 1901-1902 as the cab stand of the Pennsylvania Railroad Station in Pittsburgh, the Rotunda was designed by D. H. Burnham, who also worked on many buildings for the Chicago World's Fair of 1893. Its neo-Baroque design reflects late nineteenth-century exposition architecture. The structure is built largely of light brown terra cotta over a steel truss framework, with three four-centered arches anchored by four arched corner turrets and a low sweeping dome, all decorated with classical motifs. The interior uses late eighteenth-century French detail, including cartouches, guilloche bands, and French urns on the turrets. Four pendentives carry scrolls and leafwork surrounding plaques with the names of Pittsburgh, New York, Philadelphia, and Chicago, the four great cities served by the railroad. It is regarded as one of the few surviving examples of a style once common at railroad gateways, many of which have been destroyed. The structure is also recognized as an example of turn-of-the-century exposition architecture and as a reminder of Pittsburgh's early importance as a transportation center.","period_of_significance":"1901-1902","architect_builder":"D. H. Burnham (architect)","architectural_style":"Neo-Baroque","criteria":["C"],"status_note":"The document states the structure is unaltered and at its original site, and that it is presently situated in the midst of a redevelopment area.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:29.281925-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/73001587.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/73001587/2979fd36fb-800.webp","url_1600":"https://nationalhistoricalregister.com/media/73001587/2979fd36fb-1600.webp","licence":"CC BY-SA 2.5","author":"Photo by Derek Ramsey (Ram-Man)","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Pittsburgh_Union_Station_Wide_2900px.jpg\" rel=\"noopener\">Photo by Derek Ramsey (Ram-Man)</a>, <a href=\"https://creativecommons.org/licenses/by-sa/2.5\" rel=\"license noopener\">CC BY-SA 2.5</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Pittsburgh_Union_Station_Wide_2900px.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71997786","wikipedia":"https://en.wikipedia.org/wiki/Union_Station_(Pittsburgh)","wikidata":"https://www.wikidata.org/wiki/Q7886093"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/allegheny-county/rotunda-of-the-pennsylvania-railroad-station-73001587/"}