We also showcased several feats of futuristic architecture -- a skyscraper zoo with a built-in ferris wheel and a shape-shifting solar bridge that purifies the air.
For the first approach, he shapes a wettened cone of clay on a fast-spinning wheel, gradually turning a small dimple in the top into a bowl shape, which he smooths with a deerskin cloth and releases from its base with one quick draw of a taut wire.