People cross flooded St. Mark's Square in Venice, Italy, Thursday, Nov. 1, 2012. High tides have flooded Venice, leading Venetians and tourists to don high boots and use wooden walkways to cross St. Mark's Square and other areas under water. Flooding is common this time of year and Thursday's level that reached a peak of 55 inches (140 centimeters) was below the 63 inches (160 centimeters) recorded four years ago in the worst flooding in decades. (AP Photo/Luigi Costantini)

People sit at the table of a bar in a flooded St. Mark's Square in Venice, Italy, Sunday, Nov. 11, 2012. High tides have flooded Venice, leading Venetians and tourists to don high boots and use wooden walkways to cross St. Mark's Square and other areas under water. Flooding is common this time of year and Sunday's level that reached a peak of 58.66 inches (149 centimeters) was below the 63 inches (160 centimeters) recorded four years ago in the worst flooding in decades. (AP Photo/Luigi Costantini)

A woman walks in high water ner the Rialto Bridge in Venice, Italy, Thursday, Nov. 1, 2012. High tides have flooded Venice, leading Venetians and tourists to don high boots and use wooden walkways to cross St. Mark's Square and other areas under water. Flooding is common this time of year and Thursday's level that reached a peak of 55 inches (140 centimeters) was below the 63 inches (160 centimeters) recorded four years ago in the worst flooding in decades. (AP Photo/Luigi Costantini)

Children enjoy crossing flooded St. Mark's Square in Venice, Italy, Thursday, Nov. 1, 2012. High tides have flooded Venice, leading Venetians and tourists to don high boots and use wooden walkways to cross St. Mark's Square and other areas under water. Flooding is common this time of year and Thursday's level that reached a peak of 55 inches (140 centimeters) was below the 63 inches (160 centimeters) recorded four years ago in the worst flooding in decades. (AP Photo/Luigi Costantini)

People walk in high water near the Ponte delle Guglie in Venice, Italy, Thursday, Nov. 1, 2012. High tides have flooded Venice, leading Venetians and tourists to don high boots and use wooden walkways to cross St. Mark's Square and other areas under water. Flooding is common this time of year and Thursday's level that reached a peak of 55 inches (140 centimeters) was below the 63 inches (160 centimeters) recorded four years ago in the worst flooding in decades. (AP Photo/Luigi Costantini)

People walk in high water near the Ponte delle Guglie in Venice, Italy, Thursday, Nov. 1, 2012. High tides have flooded Venice, leading Venetians and tourists to don high boots and use wooden walkways to cross St. Mark's Square and other areas under water. Flooding is common this time of year and Thursday's level that reached a peak of 55 inches (140 centimeters) was below the 63 inches (160 centimeters) recorded four years ago in the worst flooding in decades. (AP Photo/Luigi Costantini)

A tourist crosses flooded St. Mark's Square in Venice, Italy, Sunday, Nov. 11, 2012. High tides have flooded Venice, leading Venetians and tourists to don high boots and use wooden walkways to cross St. Mark's Square and other areas under water. Flooding is common this time of year and Sunday's level that reached a peak of 58.66 inches (149 centimeters) was below the 63 inches (160 centimeters) recorded four years ago in the worst flooding in decades. (AP Photo/Luigi Costantini)

A young man and a woman enjoy swimming in flooded St. Mark's Square in Venice, Italy, Sunday, Nov. 11, 2012. High tides have flooded Venice, leading Venetians and tourists to don high boots and use wooden walkways to cross St. Mark's Square and other areas under water. Flooding is common this time of year and Sunday's level that reached a peak of 58.66 inches (149 centimeters) was below the 63 inches (160 centimeters) recorded four years ago in the worst flooding in decades. (AP Photo/Luigi Costantini)

A man enjoys swimming in flooded St. Mark's Square in Venice, Italy, Sunday, Nov. 11, 2012. High tides have flooded Venice, leading Venetians and tourists to don high boots and use wooden walkways to cross St. Mark's Square and other areas under water. Flooding is common this time of year and Sunday's level that reached a peak of 58.66 inches (149 centimeters) was below the 63 inches (160 centimeters) recorded four years ago in the worst flooding in decades. (AP Photo/Luigi Costantini)