There are two opinions why Regensburg is the northernmost settlement. First, its inhabitants say the ancient Ratisbon or Castra Regina looks like the northernmost Italian city. Second, the Danube reaches its northernmost point, latitude 49 next to this city. If we do not count emperor Traian’s bridge, the first permanent stone bridge was built here. There is a legend linked to its construction and also a Danubian island is connected to our story.
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