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
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