underground area
allow merchandise delivery base build bar build coffee shop build foundation build restaurant contain heating units create additional parking create bargain basement create cozy place create play room cross under street expand facilities get access to pipes get access to plumbing harvest salt have basement have bomb shelter have safe defense center have tunnel hidden projects hiding kill many different things protect from sky attack protect from sunlight protection protection from radiation put air conditioning unit put furnace put subway reach roots remove train from surface impediments remove travel from surafce congestion remove travel from surface congestion run subway storage store nuclear waste store product overflow from shelves store radioactive material store things storeage storing things strengthen foundation travel under ground level travel under mountain view stalagtites and stalagmites walking under main ground