Keeping Venice above water

 

Yes, it's still there (Venice), even though the river that flows into the Venice lagoon, the Po, has gone missing in parts of Italy.

PBS has a documentary about what is being done to keep the famous Italian city of canals from sinking into the sediments.

In ‘Saving Venice,’ PBS show follows efforts to save ‘Floating City’

If you want to jump right into it, here it is online. 

(Or you could just do this.  But I don't recommend it.)