Tourists walk in a flooded street during a period of seasonal high water in Venice November 1, 2012. The water level in the canal city rose to 140cm (55 inches) above normal, according to the monitoring institute. REUTERS/Manuel Silvestri (ITALY - Tags: ENVIRONMENT SOCIETY TRAVEL)
Parts of Venice, Italy, including the famous San Marco Square, were flooded this week.
A high tide forced tourists to wade through the city in knee-high waters.
Water levels are about 55 inches above normal.
Anchor Lisa Mullins speaks with Rafael Bras, Provost at Georgia Tech and an expert on Venice flooding and efforts to protect the city.