isometric low poly japanese castle.

fort roof fortified wall house king culture symbol decorative nature cartoon facade background design kingdom asian castle stronghold estate block concept land gate island landscape japan art citadel tourism old east graphic fortification travel frame journey city fantasy business flat tower construction defence outdoor isolated royal building green palace japanese built fairytale stone vector object architecture game place samurai medieval temple grey icon ancient beautiful illustration cute fortress door 3d flag element cityscape high historic isometric exterior rock