altenburg germany -may 2018: the impressive residence castle in front of the blue summer sky

altenburg altenburgcounty altenburgerland architecture blue brick building castle city clapboard court courtyard duchy duke dukedom eagle europe foliage frederick1st germany green guard hausmann hausmannturm historic history holyromanemperor imperial impressive landmark lowangleshot medieval palace residence roof saxealtenburg saxegothaaltenburg sky slate spire summer sunny thuringia tower tree vane watch watchtower weather white