The Qube is a structure located in Vancouver, British Columbia, Canada. It was erected in 1969 as the headquarters for Westcoast Transmission Co. and received the American Iron and Steel Institute's Design in Steel Award in 1970-71. It is also known as the Hydro Electric Building because it served as the headquarters for BC Hydro until 1990. The building is an example of Postmodern architecture and is constructed from aluminum and glass. Its shape is that of a square prism with one side shorter than the other two. The building has 22 floors above ground level and can be accessed by 23 elevators that serve all floors simultaneously. The total area of the building is about. As its name suggests, the Qube is used for housing electrical equipment for BC Hydro and other power companies. It is estimated that there are no more than five similar buildings in the world. The Qube was designed by Canadian architects Allwardt & Hildenbrand who had previously designed the Philips Pavilion for the Montreal World's Fair of 1967. The Qube was the first major project for them after that event, and it proved to be very successful. It won several awards including the American Iron and Steel Institute's Design in Steel Award in 1971. The Qube was listed as a National Historic Site of Canada in 2008.