Medieval Fortress Ruins Overlooking the Reuss River in Lucerne, Switzerland

Ancient stone fortifications stand majestically atop a verdant hill overlooking the placid waters of the Reuss River at Chapel Bridge end in Lucerne, Switzerland. A picturesque yellow building with blue shutters nestles against the fortress wall, while modern street lamps line the foreground bridge. Autumn leaves scatter across the scene as gentle clouds drift by under an azure sky.