After a few days in central Pennsylvania on business, I spent the weekend in Philadelphia. Flicking through the hotel's complimentary guest magazine early on the Saturday morning, I came across an article about the Eastern State Penitentiary. After reading a few paragraphs, I realised I had to make some time to visit it. The weather was miserable all morning and thus I spent most of my time in museums and galleries. In the afternoon the rain slowly came to a halt, though the grey, oppressive skies remained. In the end, they provided the perfect backdrop for this visit, which might have felt slightly odd with blue skies and sunshine...