altenburg germany -may 2018: the little pond and arttower in front of the blue summer sky kunstturm

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