panoramic view of fort sanderbout, former stronghold in the sittard fortifications

1500 ancient architecture background bastion blue building built burial casemates city concept copy culture day europe exterior former fort fortification fortifications fortress green heritage hill historic historical history holland landmark landscape last limburg medieval moat monument netherlands network nobody old outdoor panoramic path people plant rural sanderbout scenery sittard sky south space stone stronghold summer sunny town travel underground urban view wall war water