National Historic Landmark-Julius F. LeMoyne House

National Historic Landmark- Julius F. LeMoyne House

The LeMoyne House was built in 1812, and was a center of antislavery activity in southwestern Pennsylvania from the 1830s through the end of slavery.

In 1834, LeMoyne joined the Washington Anti-Slavery Society ...

National Historic Landmark-Leap-the-Dips

National Historic Landmark- Leap-the-Dips

Leap-the-Dips is the last known example of a Side-Friction Figure Eight roller coaster. Side Friction Figure Eight roller coasters were once common in amusement parks across North America as well as in parks in other parts of ...

National Historic Landmark-Laurel Hill Cemetery

National Historic Landmark-Laurel Hill Cemetery

Designed by noted Scottish-American architect John Notman in 1836, Philadelphia's Laurel Hill Cemetery is the second major rural cemetery in the United States, and Notman's first known commission.

Its romantic landscape, commemorative monuments, and eclectic architecture ...

National Historic Landmark-Kennywood Park

National Historic Landmark-Kennywood Park

Opened to the public in 1899, this is the best preserved survivor of the trolley park era when street railway companies built suburban amusement parks linked to center cities by trolley.

Kennywood has been called the Roller Coaster ...

National Historic Landmark-Johnson House

National Historic Landmark-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.

From 1770 to 1908, ...

National Historic Landmark-Insurance Company of North America

National Historic Landmark-Insurance Company of North America

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 forms of insurance, in ...

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 ...