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This is a List of National Historic Landmarks in Pennsylvania. There are 169 in the state. ... Location County Description 1: 1762 Waterworks: 1762 Waterworks. May 29 ...
Monolith with bull, fox, and crane in low relief at Göbekli Tepe. The density of most stone is between 2 and 3 tons per cubic meter. Basalt weighs about 2.8 to 3.0 tons per cubic meter; granite averages about 2.75 metric tons per cubic meter; limestone, 2.7 metric tons per cubic meter; sandstone or marble, 2.5 tons per cubic meter.
The following are approximate tallies of current listings in Pennsylvania on the National Register of Historic Places.These counts are based on entries in the National Register Information Database as of April 24, 2008 [2] and new weekly listings posted since then on the National Register of Historic Places web site. [3]
This is a list of Native American archaeological sites on the National Register of Historic Places in Pennsylvania.. Historic sites in the United States qualify to be listed on the National Register of Historic Places by passing one or more of four different criteria; Criterion D permits the inclusion of proven and potential archaeological sites. [1]
Starrucca Viaduct is a stone arch bridge that spans Starrucca Creek near Lanesboro, Pennsylvania, in the United States.Completed in 1848 at a cost of $320,000 (equal to $11,268,923 today), it was at the time the world's largest stone railway viaduct and was thought to be the most expensive railway bridge as well.
Union (American Civil War) monuments and memorials in Pennsylvania (9 P) Pages in category "Monuments and memorials in Pennsylvania" The following 36 pages are in this category, out of 36 total.
The Pennsylvania State Capitol Complex is a large complex of state government buildings in Harrisburg, Pennsylvania. Set on more than 50 acres (20 ha) of downtown Harrisburg, it includes the Pennsylvania State Capitol and a landscaped park environment with monuments, memorials, and other government buildings. It is bounded on the north by ...
Known as the "Grand Canyon of Pennsylvania", a deep gorge carved by glacial meltwater. The maximum depth of the canyon is 1,450 feet (442 m) at Waterville, near the southern end. At Leonard Harrison and Colton Point State Parks, the depth is more than 800 feet and from rim to rim is approximately 4,000 feet (1200 m). Protects 160,000 acres ...