Tucked behind Stowell Street, Blackfriars survives almost intact from the 13th-century Dominican foundation that gave it its name. The cloisters now house a craft centre and small shops; the refectory operates as a restaurant serving regional ingredients in a stone-vaulted chamber that has barely changed in eight hundred years.
Worth a visit even if you do not eat: the small herb garden and the medieval well-house are both accessible. Free entry to the cloisters during business hours. The restaurant takes bookings.