After lunch my cousin and I walked around for a bit, and stumbled upon the ruins of Winchester Palace. The parts that can be seen are the remains of the Great Hall of one of the most important and largest buildings of medieval London. The 12th century palace housed the bishops of Winchester for when they had business in London. It was built by Henry of Blois for his London home. The rose window was built in the 14th century. We were surprised to have found ruins on our walk, but happily surprised.