Photographs showed people wading through inundated piazzas and waves lapping over waterside cafe tables . Venice reportedly suffering one of its worst floods in 22 years . Landmark Piazza San Marco under almost a meter of water at one point . UNESCO has put Venice at risk of high floods caused by climate change .
Venice reportedly suffering one of its worst floods in 22 years . Landmark Piazza San Marco under almost a meter of water at one point . UNESCO has put Venice at risk of high floods caused by climate change .