brick city clock hall medieval museum thorn Torun tower town castle defensive fortified wall walls arch arches bridge bridges charente charente river France french medieval town pont river riviere water center centre crowd England english gate historic history old pavement people roman streets order teutonic Austria baroque cityscape europe houses Mozart panoramic salzburg tourism view architecture building château Historic site landmark medieval architecture property stately home cathedral fortress hill background battlements black cobblestones fortifications house middle age postcard rampart stone village