A Tudor manor house set in Christchurch Park, the mansion was built in 1548 and has served as a museum since 1895. The collection is remarkable for a city of Ipswich's size: a strong run of Gainsborough portraits and landscapes, a fine selection of Constable sketches and oils, and Tudor and Stuart furniture that matches the architecture. The rooms feel lived-in rather than museumified — this is one of the better preserved historic interiors in East Anglia.
Entry is free. The house opens Tuesday to Sunday year-round. Allow at least an hour, more if you want to look carefully at the paintings. The park itself — lawns, ancient trees, a walled garden — is worth an hour on its own in good weather.