On the territory of Italy there are giant megalithic walls, some of which date back to the Bronze Age. Of course, this is not Peru or Mycenae, and there will be more "bricks" in Japanese castles, but still the Italian Cyclopean walls deserve attention.
Alatri (Lazio) Acropolis of the city of Alatri. Small Gate (Porta Minore):
Acropolis of the city of Alatri, the Great Gate (Porta Maggiore):
Acropolis of Alatri, inside Porta Maggiore:
Acropolis of Alatri. Walls:
Promotional video:
Ruins of the city of Alba Fucens (Abruzzo):
Wall in the city of Amelia (Umbria):
Civitella di nesce (Lazio):
Ancient Roman city of Koza (Toscana):
Acropolis of Ferentino (Lazio):
Acropolis Ferentino. Here you can clearly see three stages of construction: the Dorim Cyclopean (below), according to one of the versions, the Etruscans, Roman and medieval, had their hand here.
Ruins of the city of Norba (Lazio):
San Felice Circeo (Lazio):
Assiny: