The Allegheny Portage Railroad was the first railroad constructed through the Allegheny Mountains in central Pennsylvania. It operated from 1834 to 1854 as the first transportation infrastructure through the gaps of the Allegheny that connected the midwest to the eastern seaboard across the barrier range of the Allegheny Front. Approximately 36 miles (58 km) long overall, both ends connected to the Pennsylvania Canal, and the system was primarily used as a portage railway, hauling river boats and barges over the divide between the Ohio and the Susquehanna Rivers. Today, the remains of the railroad are preserved within the Allegheny Portage Railroad National Historic Site operated by the National Park Service.
The Smithfield Street Bridge is a lenticular truss bridge crossing the Monongahela River in Pittsburgh, Pennsylvania, USA.
The Penn Alto Building is an historic landmark building that is located in downtown Altoona, Pennsylvania, United States. It is nine stories high and has a partial tenth floor penthouse.
Fort Gaddis is the oldest known building in Fayette County, Pennsylvania and the second oldest log cabin in Western Pennsylvania. It is located 300 yards (270 m) east of old U.S. Route 119, near the Route 857 intersection in South Union Township, Fayette County, Pennsylvania. Fort Gaddis was built about 1769-74 by Colonel Thomas Gaddis who was in charge of the defense of the region, and his home was probably designated as a site for community meetings and shelter in times of emergency, hence the term "Fort Gaddis," probably a 19th-century appellation. It is a 1 1/2-story, 1-room log structure measuring 26 feet long and 20 feet wide.
The Billmeyer House, also known as York House, is a historic home located at York, Pennsylvania, York County, Pennsylvania. It was built in 1860, and is a three-story, brick Italian Villa style dwelling. It consists of a "head house" with rear wing, and topped by flat roof with a 10 feet square cupola. The interior features a parlor ceiling and walls decorated by noted artist Filippo Costaggini (1839–1904).
The Pagoda is a novelty building, built atop the south end of Mount Penn overlooking Reading, Pennsylvania, United States. It has been a symbol of the city for more than a century.
The Perkiomen Bridge, originally built 1798-99 and widened in 1928, is one of the oldest stone arch bridges in the United States still in use. It crosses Perkiomen Creek near Collegeville, Pennsylvania. The bridge's six semi-circular arches cover a total of over 300 feet (91 m). The longest arch spans 76 feet (23 m). Its decorative piers and belts courses are unusual for a bridge this old. A lottery financed $20,000 of the original construction. The bridge carried the main road from Philadelphia to Reading, known at various times as the Manatawny Pike, Germantown Pike, the Philadelphia-Reading Pike, and US 422. Since the construction of the US 422 bypass, the road has been known as Ridge Pike or Old US 422.
The Neff Round Barn, also known as the Red Round Barn, is an historic, American round barn that is located in Potter Township, Centre County, Pennsylvania.
Bridge in Reed Township, originally known as Wiconisco Canal Aqueduct No. 3, is a historic multi-span stone arch bridge spanning Powell Creek on State Route 147 in Reed Township, Dauphin County, Pennsylvania. It was built in 1840, as an aqueduct. The property measures 72 feet (22 m) long by 50 feet (15 m) wide. It is built of red and white coursed ashlar and features a belt course and continuous parapet cap.
The Warrior Ridge Dam and Hydroelectric Plant is an historic, American dam and power plant and national historic district that spans the Frankstown Branch Juniata River and is located in Logan Township and Porter Township in Huntingdon County, Pennsylvania.
Martin Schultz House is a historic home located at Hallam, York County, Pennsylvania. It was built about 1736, and is a 1+1⁄2-story, rectangular blue limestone early Germanic dwelling built into a hillside. It measures 30 feet by 50 feet and has a steeply pitched roof with gable dormers. It was restored between 1956 and 1960.
The Springer Farm is an historic, American home and farm complex that is located in North Union Township, Fayette County, Pennsylvania.
The Penn-Craft Historic District is a national historic district that is located in Luzerne Township, Fayette County, Pennsylvania.
The Swetland Homestead is an historic, American home that is located in Wyoming, Luzerne County, Pennsylvania.
The Nyce Farm, also known as the Eshback Farm and Van Gordon House, is an historic, American home and farm complex that is located in the Delaware Water Gap National Recreation Area in Lehman Township, Pike County, Pennsylvania.
The New York Mutual Life Insurance Company Building, also known as the Victory Building, is an historic, American office building that is located in the Market East neighborhood of Philadelphia, Pennsylvania.
The Old Federal Reserve Bank Building is an historic, American bank building that is located at 925 Chestnut Street, on the corner of South 10th Street, in the Market East neighborhood of Philadelphia, Pennsylvania.
The Wrightstown Octagonal Schoolhouse, also known as the Wrightstown Eight Square School and the Penns Park Octagonal School, is an historic, American, one-room school building that is located in Wrightstown, Wrightstown Township, Bucks County, Pennsylvania.
The Penns Park Historic District is a national historic district that is located in Wrightstown Township, Bucks County, Pennsylvania.
The William Everhart Buildings, also known as the Everhart-Lincoln Building, is an historic, American commercial building complex that is located in West Chester, Chester County, Pennsylvania.
