Hop-A-Long Virtual Cache
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(virtual)
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Located in Center City Philly this hopper is just waiting to meet you.
One of four original squares designed by William Penn, this square is home to a copious amount of outdoor art, which Philadelphia is quite known for. This particular square is named after a University of Pennsylvania astronomer/inventor of some fame. This square serves as a favorite for locals and tourists alike.
To get credit for this cache e-mail me:
1) what the outdoor art is at the specified coordinates.
2) the year imprinted on it
Additional Hints
(No hints available.)