Throughout history, new buildings have changed the way Oxford looks and how its residents behave. Whether their aesthetic was met with contempt, their purpose divided opinion, or — in the case of the Cutteslowe Walls — they even physically divided social classes, manmade structures have left a tangible imprint on the city and its inhabitants.

Our new web-only video series, Architecture That Shook Oxford, explores how buildings have changed the city over the last 1,000 years. The monthly series will trace the history of some of Oxford's most influential architecture, from the walls which defined the city's limits back in 1040, through the invigorating modern architecture of St Catherine's College, to Frank Cooper's captivating marmalade factory.

Part 4: New College

Archaeologist Julian Munby tours and gives a history of New College Oxford, including the ancient city walls preserved inside the college site–which have a mysterious purpose.