(1,190,000 sq ft)
"The building uses a circular floor plan. Although the front entrance is on the 'ground floor', commuters are taken through a set of escalators to the 3rd floor lift lobby. Hopewell Centre stands on the slope of a hill so steep that the building has its back entrance on the 17th floor towards Kennedy Road."
http://en.wikipedia.org/wiki/Hopewell_Centre_(Hong_Kong)
http://skyscraperpage.com/diagrams/?searchID=200&page=1
