Ngā Taonga Sound & Vision lease the Map Room in a two-storey underground bunker built into Mount Cook. The site is referred to in corporate documents as Buckle Street. Constructed during World War II, the bunker and tunnels are located underground behind the former Dominion Museum building, with an operational entrance next to Wellington High School on Taranaki Street. The storage area contains film, large equipment and paper documentation. In 2012/13 the store was reorganised and filled to 85% of capacity. The vault reaches temperatures over 18C, well above best practice conditions for the storage of film (2-4C) and paper based documentation (13-18C).