allner, germany - 08 19 2020: rusty iron at an old wall, with tiny decoration

landscape terrain nature vacation bonn 1950s flood prevention fresh siegburg main valley habitat small rivers direct connected sieg rhin nearby used side germany 2020 late summer view building tower calm cloud reflections level house information close leveling like watersupply allner hennef city limits sign next town lcated allnersee schloss old castle inhabited open public mirrors narrow curve gate park 2020: rusty iron wall tiny decoration sieg river