The 'choças' of Marvão follow the rudimentary pattern of roundhouses found throughout Celtic settlements in Europe. Similarly, a number of corbelled circular drystone shelters, with a false cupola (Portuguese: chafurdão)[17] in Marvão reflect similar Iron Age structures across Southern Europe[18] (e.g. the Spanish bombo and Croatian trim) associated with the terracing and clearance of rocky land for farming. The Vettones culture was renowned for its cattle-rearing and Verraco (Portuguese: berrão) pig-like sculptures: porco preto rearing remains dominant in local agriculture and cuisine.