Questo in Italia <http://www.businessinsider.com/architect-carlo-ratti-makes-edible-chocolate-...> An Italian architecture firm designed a building made entirely of chocolate, commissioned by high-end chocolatier Venchi. The building's inside uses facial recognition to measure visitors' reactions while eating chocolate. [...] Visitors are free to pick the chocolates off the exterior walls, which measure 10 feet long and 20 feet tall. Inside, there are screen that use facial recognition to measure visitors' emotions while eating the chocolate. The system, developed by interaction design studio DotDotDot, analyzes each person's movement of their lips, eyebrows, eyes, nostrils, and forehead. Their face is then projected on the interior walls. [...]