The Nottingham City of Caves (also known as the Tigguo Cobauc) which lie under the Broadmarsh Shopping Centre in Nottingham is a vast area dating back to medieval times. Beneath the houses, shops and offices of Nottingham lie hundreds of caves. Few people in Nottingham are aware of this labyrinth, which exists underneath the city streets, and fewer still have visited them. Nottingham has more man-made caves than anywhere else in Britain. People have worked and lived in them for over 1,000 years.