Here’s a great story from NPR on the negative impact of Cruise Ships in Venice.

The fragile architectural treasures of Venice are endangered by rising sea levels, and a growing number of critics now say the city and its canals are at risk from massive cruise ships as big as floating skyscrapers.

On an average day, tens of thousands of passengers lean over the railings of cruise ships that can be 300 yards long and 15 stories high. The tourists peer down at the majestic Doge’s Palace as they sail into St. Mark’s basin and down the Giudecca canal.

Read the whole story here.