When Museum of London archaeologists began the examination of the area around Leadenhall Court, in the City of London, they were anticipating finding the remains of the Roman town hall known as the Basilica. However, they discovered a massive masonry wall some 14m high - a substantial section of the 15th-century Leadenhall market. It became clear that the Roman and 15th-century remains could provide an insight into the changing character of London. This book describes the excavations and discoveries.