Invented in 1844 by Phoenix Iron Works in England, corrugated galvanized iron churches, ordered through catalogues, were meant to be temporary. A prefabricated iron church could cost from £150 for a 150-seat chapel to £500 for a 350-seat chapel - a bargain compared to conventional building materials. British photographer and filmmaker Alasdair Ogilvie spent more than 20 years recording the dying traces of these buildings, which are featured in Pentagram Papers 35: Tin Tabernacles and Other Buildings.