Masonry

"Decorations can be carved onto stone! I saw this amazing citizen the other day that carved a statue out of a piece of marble! We need a Masonry... now!" Impatient Councilor 2016 Building Requirements:
 * Name: Masonry
 * Tax Modifier: 50 (5,000 per object)
 * Size: 20*20
 * Protected by the server: No
 * Limit Per City: 1
 * 10 of each type of stone
 * A scientist type of villager
 * 4 diamond pickaxes