Guestrow (walk under passageway at St. Nicholas House on Broad Street and it's in the little plaza there). ***Provost Skene's House is currently closed as access is not possible due to construction works on the Marischal Square development which surrounds it*** Scottish towns and cities have a "provost" instead of a mayor and this house used to belong to Provost George Skene. The large, picturesque house dates from 1545 (it's the oldest house left in the city) and houses various rooms furnished to show how people in Aberdeen lived in the 17th, 18th and 19th centuries. There is an excellent cafe in the cellar. The house is closed on Sundays. Admission free.