The Prince of Monaco is the new owner of the recently acquired Philadelphia house, situated on 3901 Henry Avenue, in the United States. The current owner having recently passed away and her family has shown no interest in keeping the property.
The Quai des Etats-Unis borders the Northern part of Port Hercule, for a length of approximately 370 metres, between the North Sea Wall (to the East) and the Northern Dock (to the West).