small fountain with a jet of water reflecting a rainbow in a pond, the rondeel of the old city wall in the maastricht city park

ancient architecture background beautiful building city concept copy culture europe exterior famous foliage fortification fortress green harmony heritage historic history holland idyllic lake landmark landscape limburg maastricht medieval monument nature netherlands old park people picturesque plant pond reflection round roundel scenery space still stone summer tourism tower towershaped town travel tree urban view water