http://www.google.co.uk/imgres?um=1&hl=en&authuser=0&biw=1004&bih=492&tbm=isch&tbnid=-i5Ih_7aBpNL4M:&imgrefurl=http://www.geoffshackelford.com/homepage/2007/11/26/each-home-will-be-between-367-and-700-square-metres-with-tur.html&docid=HpugLjYgvs03WM&imgurl=http://en.epochtimes.com/news_images/2007-6-25-the-hills-house-credit-mark-hill2.jpg&w=300&h=190&ei=XF-qUKK3Oump0AXRqIC4BA&zoom=1&iact=rc&dur=272&sig=103288091702637493191&page=1&tbnh=144&tbnw=239&start=0&ndsp=8&ved=1t:429,r:6,s:0,i:84&tx=138&ty=72
Submerged science park - public use roof gardens over?