The Water Tower is the central building of the International Exhibition that will take place in Zaragoza between June and September 2008. This building has a singular character due to its shape in plan, similar to a drop of water, and to the difficulty in arranging structural elements, since it is basically an empty space closed by a facade
For more details:
http://e-ache.com/modules/ache/ficheros/Realizaciones/Obra100.pdf