Standard Buildings (All buildings except Wonders)All BuildingsUnblockable Melee (Armor-ignoring melee attack against units, but not against buildings) +4
Upgrades that reach it
University, town centre and castle research that changes this building's numbers.
Masonryhit points ×1.1 · +1 melee armor · +1 pierce armor · Also +3 armour against the bonus damage siege does to buildings.
Architecturehit points ×1.1 · +1 melee armor · +1 pierce armor · Also +3 armour against the bonus damage siege does to buildings.