shopping in central derby is divided into three main areas. these are the cathedral quarter, the st peters quarter and the intu derby shopping centre. the cathedral quarter was derby's first bid (business improvement district), and includes a large range of shops, boutiques, coffee shops and restaurants. it is focused around the cathedral and the area around irongate and sadler gate. it includes the market place, the guildhall and assembly rooms along with the city museum and the silk mill industrial museum.