the holzhausenschlösschen in frankfurt serves as an advent calendar. great building with christmas tree

advent ancient architecture attraction autumn background backpacker blue building calendar castle christmas city collection culture december downtown estate europe evening exterior flower frankfurt garden german germany gift grass green heritage hesse historic historical history holiday holzhausenschlösschen house landmark landscape light lighting nature night old orangery outdoor palace park plant pond poster reflection romantic scenery scenic sight sightseeing site sky street tourism tourist town traditional travel tree trees trip view water winter world xmas