Your cities yield +8% Science when you are at war with any Civilization, yield +8% Production when you are at peace with all Civilizations. +3 Loyalty per turn for cities with a garrisoned unit.
Must be built in a City with a Tier 3 Building of Encampment district. Must be built on a flat tile adjacent to City Center.
+2 Tourism
+1 extra per Era that you've advanced past this Wonder's era