World wonder in Civilization V Production cost 250 Image:20xProduction5.png Culture 1 Image:20xCulture5.png Image:GreatPeople5.png 1 Great Engineer points Technology Image:Engineering (Civ5).png Engineering Effect "The art of war teaches us to rely not on the likelihood of the enemy's not attacking, but rather on the fact that we have made our position unassailable." –Sun Tzu