Torikorttelit

This guide to Torikorttelit in Helsinki opens at Sederholm House, the stone mansion Johan Sederholm built in 1757 in a city where everyone else still built in wood. It follows Sederholm's rise from the son of a newly arrived customs officer to a merchant who profited from the Russian money pouring into the Suomenlinna fortress project, and the business rooms and vaulted cellars he stacked with goods on the ground floor. It also traces the building's long stretch as a working warehouse before the city bought it in 1949.