+1 Production from each adjacent Aerodrome tile.
+1 Production from each adjacent Commercial Hub tile.
+1 Production from each adjacent Harbor tile.
+1 Production from each adjacent Industrial Zone tile.
+2 Culture from each adjacent wonder tile, requires Steel.
+2 Production from each adjacent Corporation tile.
+1 Production from each adjacent tile.
+1 Production from each adjacent Industry tile.
+1 Production from each adjacent wonder tile.