Photo Gallery Flood Control in Venice
Venice is sinking, slowly but surely. The city has battled the water ever since it was founded 1,600 years ago in a marshy lagoon. Here, St Mark's Square is seen underwater following flooding in December 2010.
Most tourists don't mind flooding during their visit to Venice, but it's a big problem for locals.
A satellite image of the Venetian lagoon. Venice is working on a gigantic project to prevent the floods that threaten its future.
Inhabitants worry that they won't be able to save their city after all. The ground on which Venice stands is sinking and the water is rising.
Venice's Struggle against Nature
An old building on a Venice canal. In many privately-owned houses, the occupants have given up on the ground floor and only live on the upper floors.
Experts are divided over whether the gigantic engineering project to protect Venice will actually work.
An aerial view of Venice and some of its better-known sites.