National Historic Landmark - Johnson House

National Historic Landmark - The Johnson House

Philadelphia was a center of the nineteenth-century American movement to abolish slavery, and the Johnson House was one of the important stations on the Underground Railroad that helped lead so many to freedom. ...

National Historic Landmark - INA Building

National Historic Landmark - Insurance Company of North America (INA) Building

Since 1925, this 16 story, steel frame, brick and stone structure has been the home of the oldest capital stock insurance company in America.

Incorporated in 1794, INA pioneered many ...

National Historic Landmark- Pennsylvania Hospital Institute

National Historic Landmark - Institute of the Pennsylvania Hospital

Completed in 1859, this hospital for the mentally ill introduced innumerable innovations for its day and influenced similar institutions throughout America.

Its basic plan was the work of Dr. Thomas ...

National Historic Landmark - Horseshoe Curve

National Historic Landmark - Horseshoe Curve

Placed into service in 1854, Horseshoe Curve is a notable example of ante bellum railroad engineering and construction.

Its completion marked the joining of the eastern and western divisions of the Pennsylvania Railroad and contributed ...

National Historic Landmark - Honey Hollow Watershed

National Historic Landmark - Honey Hollow Watershed

Comprised of five farms on about 650 acres, Honey Hollow Watershed is the first small upland watershed in agricultural use and multiple private ownership to demonstrate that cooperative local action, supported by Federal ...

National Historic Landmark - Hill-Keith-Physick House

National Historic Landmark - Hill-Keith-Physick House

From about 1815 until his death, this was the home of Philip Syng Physick (1768-1837), the late 18th and early 19th century Philadelphia physician who has been called the father of American surgery.

Courtesy National ...

National Historic Landmark -Milton S. Hershey Mansion

National Historic Landmark -Milton S. Hershey Mansion

From 1908 to 1945, this was the residence of Milton Snavely Hershey (1857-1945), originator of the Hershey Bar.

In the first half of the 20th century, Hershey's company became the world's largest manufacturer of ...

National Historic Landmark - Harrisburg Station and Trainshed

National Historic Landmark - Harrisburg Station and Trainshed

With its passenger station and two train sheds, the Harrisburg Station is the most important structure remaining from the years when the city was a major stop along the Main Line of the ...

National Historic Landmark - Frances Ellen Watkins Harper House

National Historic Landmark - Frances Ellen Watkins Harper House

From 1870 to her death, this was the home of Frances Ellen Watkins Harper (1825-1911), a Black writer and social activist who participated in the abolitionist, black rights, women's suffrage, and ...

National Historic Landmark - Harmony Historic District

National Historic Landmark - Harmony Historic District

The Harmony Society, 300 followers of George Rapp, established a utopian settlement here in 1805.

It developed into a prosperous agricultural and manufacturing community, which was sold when the Society decided to move to ...