This week's "broke down a wall and found a treasure" story is courtesy of the Basilica of the Santissima Annunziata, in the heart of Florence. Researchers have uncovered a set of rooms that were used as a workshop by none other than Leonardo DaVinci. The article doesn't mention just how long the rooms were walled off from the rest of the monastery, but it does mention the existence of DaVinci frescos depicting the work he was up to at the time.