alt-linzenshäuschen is the name of one of the eight former watchtowers

building estate house chapel monastery tree church cottage home village ruins castle autumn property mansion abbey aachen aix chapelle architecture background beautiful building campus center charlemagne city cityscape day europe european facade german germany green historic home house illustrative editorial landmark modern nature old outdoor outdoors park rhine-westphalia school sightseeing sign sky stone street tourism tourist town travel university urban view visitor window