9 Votes
3400 West Girard Avenue, Philadelphia, PA 19104-1139
Throughout its history, the Philadelphia Zoo has played a monumental role in educating the public about exotic animals, promoting and participating in worldwide conservation efforts ...
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8 Votes
222 North 20th Street, Philadelphia, PA 19103-1115
On February 5, 1824, Samuel Vaughan Merrick and William H. Keating founded The Franklin Institute of the State of Pennsylvania for the Promotion of the ...
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4 Votes
1900 Benjamin Franklin Parkway, Philadelphia, PA 19103-1101
The Academy of Natural Sciences of Philadelphia was founded in 1812 "for the encouragement and cultivation of the sciences, and the advancement of useful learning." ...
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3 Votes
2027 Fairmount Avenue, Philadelphia, PA 19130-2610
Eastern State Penitentiary was once the most famous and expensive prison in the world, but stands today in ruin, a haunting world of crumbling cellblocks ...
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5 Votes
1400 North Outer Line Drive, King Of Prussia, PA 19406
Valley Forge National Historical Park commemorates more than the sacrifices and perseverance of the Revolutionary War generation; it honors the ability of citizens and their ...
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