在以下頻道推出： Prime Video、Tubi
第 1 季，第 2 集: The controversial impact of big cruise ships, global climate change and other threats to the Venice lagoon are covered in depth, as is the engineering behind a 7 billion euro project to build a massive underwater surge barrier that rises out of the sea when high tides threaten to flood the ancient city.
Documentary · 2015年5月4日 · 44 分鐘