We toured the Batilló House which is an incredible apartment building by Gaudi. The house is made to resemble a dragon - the dragon killed by St. George (Sant Jordi being the patron saint of Catalan). Inside, the stairwell is made of wood and resembles the spine of the dragon. The window to the living room looks like the mouth of the dragon. The roof has tiles which look like the scales of the dragon. It's hard to describe - it's one of those "must see to believe" kind of places.