Cambridge, verdict by verdict

Cambridge is Oxford's gentler twin: the same college-quad architecture laid out along the Backs, where the colleges' gardens and bridges run down to the Cam. King's College Chapel is the single finest room in either university city, punting here is scenic rather than a novelty, and the Fitzwilliam Museum punches far above a town this size.

The caveat comes with the colleges: they are private, and interiors open on restricted hours or paid entry that varies by term, with the May-June exam season closing or restricting heavily. Outside the college circuit there is less to fill a second full day than in Oxford, the centre can feel over-gentrified around the tourist core, and anyone already doing Oxford while short on time can treat it as optional.

It rewards a slower, punting-and-greens pace: one day for the chapel, the Backs and a punt, two with a museum morning or an Ely and Duxford trip, all flat and walkable and about an hour by train from London. It suits travelers after a quieter college-town break than Oxford and day-trippers who prefer scenery to a packed sight list.