http://AATesaurus.cultura.gencat.cat/aat/getty_enhttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997single built works by location: topographical http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997 single built works by location or context BT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997 artificial reefs NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997 artificial islands NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997 earthen architecture NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997 underwater buildings NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997 underground structures NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997 marine structures NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997 hillside architecture NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997 rock-cut architecture NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997 extraterrestrial structures NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997 earthworks NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31350997 cave architecture NT