"Desert (CivBE)"@en . "A Vivarium increases a desert's yield to +1 File:20xFoodBE.png, though it may only be built in land cities. Unlike tundra, farms can always be built on Desert tiles."@en . "A Vivarium increases a desert's yield to +1 File:20xFoodBE.png, though it may only be built in land cities. Unlike tundra, farms can always be built on Desert tiles."@en . . . .