WBarabaraWBasementWChurch of St Petka of the SaddlersWCoal binWCryptWCryptoporticusWDugout (shelter)WEarth lodgeWEarth shelterWHa-haWHoganWIcelandic turf houseWKivaWPit-houseWQargiWQuiggly holeWRoot cellarWSacromonteWSkara BraeWTaipei City MallWUnderground livingWWheelhouse (archaeology)WYaodongWZhongshan Metro Mall