![A picture taken on October 29, 2018 shows the flooded St. Mark\'s Square during a high-water alert in Venice. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached around 150 centimetres on October 29. (Photo/Agencies)](http://www.ecns.cn/hd/2018/10/30/dd038913ebe74e2099cfb8dd28d236ee.jpg)
A picture taken on October 29, 2018 shows the flooded St. Mark's Square during a high-water alert in Venice. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached around 150 centimetres on October 29. (Photo/Agencies)
![Tourists under arches next to the flooded St Mark\'s Square during a high-water alert in Venice on October 29, 2018. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached around 150 centimetres on October 29, 2018. (Photo/Agencies)](http://www.ecns.cn/hd/2018/10/30/f2725b732d8e4e1988b82bd20c7a063b.jpg)
Tourists under arches next to the flooded St Mark's Square during a high-water alert in Venice on October 29, 2018. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached around 150 centimetres on October 29, 2018. (Photo/Agencies)
![A man empties a bucket of water on a flooded street during a high-water alert in Venice on October 29, 2018. - The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached 150 centimetres on October 29. (Photo/Agencies)](http://www.ecns.cn/hd/2018/10/30/5afe673fc99d43d3866423b7af218c67.jpg)
A man empties a bucket of water on a flooded street during a high-water alert in Venice on October 29, 2018. - The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached 150 centimetres on October 29. (Photo/Agencies)
![A man walks in the flooded St. Mark\'s Square during a high-water alert in Venice on October 29, 2018. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached around 150 centimetres on October 29.(Photo/Agencies)](http://www.ecns.cn/hd/2018/10/30/837138c66e434291a535961ecefa1ffa.jpg)
A man walks in the flooded St. Mark's Square during a high-water alert in Venice on October 29, 2018. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached around 150 centimetres on October 29.(Photo/Agencies)
![People walk in the flooded Riva degli Schiavoni during a high-water alert in Venice on October 29, 2018. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached around 150 centimetres on October 29, 2018. (Photo/Agencies)](http://www.ecns.cn/hd/2018/10/30/31a964d0e2ab42da9507755fe270ddb1.jpg)
People walk in the flooded Riva degli Schiavoni during a high-water alert in Venice on October 29, 2018. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached around 150 centimetres on October 29, 2018. (Photo/Agencies)
![Tourists walk in the flooded streets during a high-water alert in Venice on October 29, 2018. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached 150 centimetres on October 29. (Photo/Agencies)](http://www.ecns.cn/hd/2018/10/30/14258a597645453b9bb475fe65379c23.jpg)
Tourists walk in the flooded streets during a high-water alert in Venice on October 29, 2018. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached 150 centimetres on October 29. (Photo/Agencies)
![A man sits on a chair in the flooded St. Mark Square during a high-water alert in Venice on October 29, 2018. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached around 150 centimetres on October 29, 2018. (Photo/Agencies)](http://www.ecns.cn/hd/2018/10/30/142f0bcefbef48b1a3c81d7c0f1d1b16.jpg)
A man sits on a chair in the flooded St. Mark Square during a high-water alert in Venice on October 29, 2018. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached around 150 centimetres on October 29, 2018. (Photo/Agencies)
![Gondolas are seen in the flooded Riva degli Schiavoni in front of the San Giorgio church during a high-water alert in Venice on October 29, 2018. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached around 150 centimetres on October 29. (Photo/Agencies)](http://www.ecns.cn/hd/2018/10/30/42d584f2536c4e3aac06a237decd2eb1.jpg)
Gondolas are seen in the flooded Riva degli Schiavoni in front of the San Giorgio church during a high-water alert in Venice on October 29, 2018. The flooding, caused by a convergence of high tides and a strong Sirocco wind, reached around 150 centimetres on October 29. (Photo/Agencies)