Snuggled behind the east wing of Independence Hall is the
American Philosophical Society Museum
, a brick building erected in the late 1780s.
The building served as our nation’s first museum, national library and academy of science.
Today, the museum holds rotating exhibitions that highlight the intersections of science, history and art.
Jefferson’s handwritten copy of the Declaration of Independence and the Lewis and Clark journals are among the important documents, scientific specimens, patent models, portraits, maps, rare books and manuscripts that can be found within its remarkable collection.
The museum is open from April to December.