National Historic Landmark-Bethlehem Waterworks

National Historical Landmark- Bethlehem Waterworks

Begun in 1754 and enlarged in 1762, the Bethlehem Waterworks are believed to be the first municipal pumping system to provide water for drinking and washing in the United States.

The system served the city until ...

National Historic Landmark-Beth Sholom Synagogue

National Historical Landmark- Beth Sholom Synagogue

Beth Sholom Synagogue is nationally significant as one of Frank Lloyd Wright's most important commissions during his career.

Constructed between 1954 and 1959, the building is Wright's only synagogue, among a relatively small number of ...

National Historic Landmark-Bedford Springs Historic District

National Historical Landmark-Bedford Springs Hotel Historic District

The Bedford Springs Hotel Historic District is significant as one of the nation's finest remaining examples of the mineral springs resort phenomenon of the 19th and early 20th centuries.

Courtesy National Park Service National ...

National Historic Landmark-USS BECUNA Submarine

National Historical Landmark-USS BECUNA Submarine

An example of the standard Fleet type BALAO class submarines which could operate at a test depth of 400 feet, BECUNA was commissioned in 1944 and served in World War II as the Submarine Flagship of ...

National Historic Landmark-John Bartram House

National Historical Landmark-John Bartram House

Constructed in 1731, this was the residence of John Bartram (1699-1777), one of America's first native botanists. The gardens, enlarged by his son, were filled with rare and exotic plants.

Courtesy National Park Service National Historical Landmarks

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National Historic Landmark-Augustus Lutheran Church

National Historical Landmark-Augustus Lutheran Church

Dedicated in September 1745, this plain sandstone structure with a polygonal apse and gambrel roof, exemplifies regional and church architecture typical of the 18th-century German settlers of Pennsylvania.

Courtesy National Park Service National Historical Landmarks

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National Historic Landmark-Athenaeum

National Historical Landmark- Athenaeum

Completed in 1847, this is one of the first Italian-style palazzo designs in America.

Architect John Notman (1810-1865) designed this structure; his design was the winner in a competition in which Strickland, Haviland, and Walter all took ...

National Historic Landmark-American Philosophical Society Hall

National Historical Landmark- American Philosophical Society Hall

Since 1789 this two-story late-Georgian brick building has housed the fortnightly meetings of one of America's oldest and most honorable learned societies.

The organization traces its origins to 1743, when Benjamin Franklin publicly urged ...

National Historic Landmark-Allegheny Portage Railroad

National Historical Landmark- Allegheny Portage Railroad of the Pennsylvania Canal

This first railroad over the Allegheny Mountains operated from 1834 to 1854 and was considered a technological marvel of its time.

An inclined plane, it carried canal boats over a 36-mile ...

National Historic Landmark-Allegheny County Courthouse and Jail

National Historical Landmark-Allegheny County Courthouse and Jail

When architect Henry Hobson Richardson realized his days were numbered, he wrote, Let me have time to finish Pittsburgh and I should be content without another day.

He was referring to the massive buildings ...