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 Philadelphia Quartermaster Depot, now known as the Defense Logistics Agency Troop Support, was founded as the Schuylkill Arsenal in 1799.
The Mishler Theatre is a Beaux-Arts stage and movie theater located at 1208 Twelfth Avenue in Altoona, Pennsylvania.
Central Trust Company Buildings are two historic commercial buildings located at Altoona, Blair County, Pennsylvania. They are two five-story buildings connected by a stair and elevator tower. The buildings measure 130 by 120 feet. The Central Trust Company Building was built in 1905 and is a white glazed brick building with brownstone trim in the Beaux Arts style. The entry features two Ionic order engaged granite columns. The adjoining Brett Building was built between 1922 and 1924.
Birmingham Bridge, also known as Huntingdon County Bridge No. 15 and Blair County Bridge No. 48, is a historic Pratt truss bridge spanning the Little Juniata River and located at Tyrone Township, Blair County and Warriors Mark Township, Huntingdon County, Pennsylvania. It was built by the Pennsylvania Bridge Co. in 1898. It measures 137 ft (42 m) in length and has a 14.7-foot-wide (4.5 m) bridge deck. It is the only means of access to two dwellings on the Blair County side of the river.
Downtown Altoona Historic District is a national historic district located at Altoona, Blair County, Pennsylvania. The district includes 240 contributing buildings in the central business district and surrounding residential areas of Altoona. The buildings were primarily built after about 1860 and include residential, civic, social, and religious buildings. Although it does not encompass the entire downtown, it is for the most part the most urban part of Altoona's downtown district. Notable buildings include the Cathedral of the Blessed Sacrament (1920s), First Methodist Episcopal Church, First Presbyterian Church, First Evangelical Lutheran Church (1896-1897), U.S. Post Office (1931-1933), Fraternal Order of Eagles Building (demolished), Altoona City Hall, Casanave Building (1890s), Hutchison Block, McCrory's Department Store (1937), and Aaron-Penn Furniture Building. Located in the district are the separately listed Central Trust Company Buildings, Mishler Theatre, and Penn Alto Hotel.
Knickerbocker Historic District is a national historic district located at Altoona, Blair County, Pennsylvania. The district includes 153 contributing rowhouse buildings in a residential area of Altoona. The buildings were primarily built between 1903 and 1930, as affordable worker's housing and reflect a number of popular architectural styles including Colonial Revival and Classical Revival. The buildings feature decorative parapets, bay windows, porch posts, pediments, and a variety of ornamentation. The district is visually dominated by the former Knikerbocker Hotel.
Llyswen Historic District is a national historic district located at Altoona in Blair County, Pennsylvania, United States. The district includes 166 contributing buildings in a residential area of Altoona. The buildings are primarily single-family dwellings built between 1895 and 1940, and reflect a number of popular architectural styles including Colonial Revival and Queen Anne. Notable non-residential buildings include the Llyswen Methodist Episcopal Church, Ward Avenue United Presbyterian Church, Baker Elementary School and Llyswen Station.
Etna Furnace, also known as Mount Etna Furnace, Aetna Furnace, and Aetna Iron Works, is a historic iron furnace complex and national historic district located at Catharine Township, Blair County, Pennsylvania. The district includes five contributing buildings, six contributing sites, and two contributing structures. It encompasses a community developed around an iron furnace starting in 1805. Included in the district is the four-sided stone furnace (1808), gristmill site, canal locks, site of lock keeper's house, aqueduct, two small houses, the ruins of a charcoal house (1808), the foundation of a tally house, a blacksmith shop, bank barn, foundation of a boarding house, three family tenant house, two iron master' mansions, a store and paymaster's office, Methodist / Episcopal Church (1860), and cemetery with graves dating between 1832 and 1859.
Everett Historic District is a national historic district located at Everett, Pennsylvania. The district includes 300 contributing buildings and 1 contributing object in the central business district and surrounding residential area of Everett. The buildings date between about 1830 and 1952, and include notable examples of Gothic Revival and Federal style architecture. Notable non-residential buildings include the U.S. Post Office (1938), Everett Free Library, Zion Lutheran Church, Grace Brethren Church, Barndollar Methodist Church (1860), Everett Hardware Company Building, foundry on North Juniata Street (1874), and Everett Manufacturing Company (1920-1955).
Pennsylvania Railroad Old Bridge over Standing Stone Creek, also known as Conrail Old Bridge over Standing Stone Creek, is a historic multi-span stone arch bridge spanning Standing Stone Creek and located at Huntingdon, Huntingdon County, Pennsylvania. It was built by the Pennsylvania Railroad between 1848 and 1850. It was in use until 1892, when the main line was relocated onto the former Pennsylvania Canal bed. A second stone arch bridge was constructed nearby for the new alignment.
Pennsylvania Furnace Mansion, also known as the Lyon Mansion, is a historic home located at Franklin Township in Huntingdon County, Pennsylvania. It was built in 1834, and is a 2 1/2- to 4-story, "L"-shaped limestone dwelling in the Federal style. The 3+1⁄2-story front facade features a center entrance framed by a transom and sidelights. Also located on the property is a contributing privy. The house was built as the ironmaster's mansion at Pennsylvania Furnace.
Huntingdon Furnace is a national historic district and historic iron furnace and associated buildings located at Franklin Township in Huntingdon County, Pennsylvania. It consists of seven contributing buildings and one contributing structure. They are the iron furnace, office building, the ironmaster's mansion, log worker's house, a residence, the farm manager's residence, the grist mill and the miller's house. The iron furnace was moved to this site in 1805, from its original site one mile upstream. It measures 30 feet square by 30 feet high. The ironmaster's mansion was built in 1851, and is a 2 1/2-story, "L"-shaped frame dwelling. The grist mill dates to 1808, and is a 3 1/2-story, rubble stone building measuring 50 feet by 45 feet. The furnace was in operation from 1796, until it ceased operations in the 1880s.
Harbison-Walker Refractories Company originated as the Star Firebrick Company on March 7, 1865, with Articles of Association by a group of Pittsburgh and Allegheny residents. On January 30, 1875, Hay Walker Sr. and Samuel P. Harbison entered Articles of Agreement to purchase the interests in Star Fire Brick Company and formed the Harbison and Walker Company. Then on July 30, 1894, Harbison & Walker was incorporated under the laws of the Commonwealth of Pennsylvania, finally being chartered as Harbison-Walker Refractories Company by the Commonwealth of Pennsylvania on June 30, 1902. Ultimately this company was merged into Dresser Industries in 1967.
Huntingdon Borough Historic District is a national historic district located at Huntingdon in Huntingdon County, Pennsylvania. The district includes 521 contributing buildings in the central business district and surrounding residential areas of Huntingdon. They date from the late-18th century to the early-20th century, and are primarily two- and three-story brick or frame structures. The buildings are reflective of popular architectural styles including Federal, Italianate, and Queen Anne. Notable buildings include the county jail (1829), Union Depot (1872), Penn Hunt Hotel (1873-1874), switching tower, Fisher and McMurtie's Store, Reed's Drug Store (1865), Port Building (1875), Iron Front Store (1884), and Blair Building (1889).
Bridge in Portage Township is a historic stone arch bridge located at Portage Township in Cambria County, Pennsylvania. It was built by the Allegheny Portage Railroad in 1832, and is an 18-foot-long (5.5 m) bridge, with a semi-circular arch. It is built of coursed ashlar and crosses Bens Creek.
Lilly Bridge is a historic stone arch bridge located at Lilly in Cambria County, Pennsylvania. It was built by the Allegheny Portage Railroad in 1832, and is an 18-foot-long (5.5 m) bridge, with an elliptical shape and curved wingalls. It is built of roughly squared ashlar and crosses Burgoon Run.
Shade Furnace Archeological District, also known as Old Shade Furnace and Shade Forge, is a national historic district located at Shade Township in Somerset County, Pennsylvania. The district includes four contributing sites and two contributing objects. It encompasses the ruins of a countryside plantation style iron forge operation that operated from 1808 to 1858. It includes a stone blast furnace structure, a forge site, an ore pit site, a farmstead site, and a late 19th-century coal mine complex. The area includes a number of archaeological sites associated with the ruins of abandoned buildings.
Laurel Hill Furnace is a historic iron furnace located at St. Clair Township, Westmoreland County, Pennsylvania. It was built in 1845, and is a rectangular cut stone furnace with four arches at its base. It remained in blast until 1855–1860. The furnace was donated to the Western Pennsylvania Conservancy in 1973.
New Kensington Production Works Historic District, also known as the New Kensington Works and Arnold Works, is a national historic district located at New Kensington, Westmoreland County, Pennsylvania. It encompasses 35 contributing vernacular industrial buildings built between about 1899 and 1947. It was the original manufacturing plant for Alcoa and produced a wide range of aluminum products including kitchen utensils, rods, bars, wire, tubing, sheet foil, automobile parts, bronze powder, industrial chemical utensils, and beer barrels.
