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达恩附近普法尔茨森林中的Altdahn城堡,德国莱茵兰-普法尔茨(Dahn Rockland), Palatinate Forest, Rhineland-Palatinate, Germany (© Reinhard Schmid/Huber/eStock Photo)
Aerial view of Chapel Bridge over the river Reuss in Lucerne, Switzerland (© Neleman Initiative/Gallery Stock)