Record-low river levels across Europe have exposed a shipwreck in Croatia and centuries-old 'hunger stones' in Germany, as experts warn Poland could face its wo

Record-low river levels across Europe have exposed a shipwreck in Croatia and centuries-old 'hunger stones' in Germany, as experts warn Poland could face its worst drought in years [▻](https://video.twimg.com/amplify_video/2084699975573987328/vid/avc1/1920x1080/ySRSsyeG-9_4qRiJ.mp4)