Where is Castro?

Castro - Arapoti Castro - Blumenau Castro - Campinas Castro - Campo Largo Castro - Castrolanda Castro - Curitiba Castro - Erechim Castro - Guaratuba Castro - Ibaiti Castro - Itapetininga Castro - Itapeva Castro - Itu Castro - Lins Castro - Palmas Castro - Passo Fundo Castro - Penha Castro - Ponta Grossa Castro - Salto Castro - Santa Rosa Castro - Sorocaba Castro - Tibagi Castro - Ventania Castro - Wenceslau Braz