german flag next to a medieval remnant wall of a fortress and panoramic view of the moselle valley below

tower landmark castle building fortification ruins monastery hill tourism mountain sky sea terrain town cliff german tourist attraction vineyard panoramic scenery historic site cultural heritage view sunny distance valley remnant monument protection moselle river defense impressive travel destinations sightseeing panorama outdoors grevenburg ruin blue fort historical landscape summer history ancient flag wall medieval old stone europe fortress architecture ruined traben trarbach germany blowing next beautiful vineyards germany