st. crispin lunatic asylum | 85 things you never knew about lunatic asylums

44. The 'pavilion' ward was characterised by a long corridor, lined by windows either side, with beds along each wall. A separate 'sanitation tower' was then attached to the ward via a short corridor.

In some asylums, the sanitation towers were simply squat blocks projecting from wards, recognised by their narrow windows and excessive external pipework. In others, they were made into architectural features, and literally became towers, usually marking the end of the building.