architecture castle detail door entrance germany history Merseburg palace renaissance Saxony stone courtyard quadrangle tower building garden gardens grass historic lawn old walls windows yard bricks clouds grounds medieval path red storm wall arches Bodium brick kent moat sun trees view water 15th. 16th. 17th. bourg bourglinster century chateau HDR king knight Luxembourg Nyberg queen culture estate house mansion texture urban window ancient battlements defence defend defender defense framlingham Suffolk arch bast bridge crossing trokai troki