With the death of Captain Francis Fowke, Royal Engineers the next architect to work at the museum was Colonel (later Major General) Henry Young Darracott Scott, also of the Royal Engineers. He designed to the north west of the garden the five-storey School for Naval Architects (also known as the science schools), now the Henry Cole Wing in 1867–72. Scott's assistant J.W. Wild designed the impressive staircase that rises the full height of the building, made from Cadeby stone the steps are 7 feet (2.1 m) in length, the balustrades and columns are Portland stone. It is now used to jointly house the prints and architectural drawings of the V&A (prints, drawings, paintings and photographs) and Royal Institute of British Architects (RIBA Drawings and Archives Collections); and the Sackler Centre for arts education, which opened in 2008.