Castelinho Castelan, nestled in Flores da Cunha in Rio Grande do Sul, is a private medieval-European-inspired castle featuring a copper roof and beveled crystal windows. Often referred to as 'The Little Castle,' the structure celebrates the European heritage of the region, particularly its Italian descendant population who migrated to southern Brazil centuries ago. Though not open to visitors, the castle can be admired externally from the four streets surrounding it, offering an impressive view of its distinctive medieval-style architecture against the backdrop of Rio Grande do Sul's mountainous landscape.