St. Mark’ s Bell Tower is certainly one of the symbols of Venice, nicknamed “El Paron de Casa” (The Master of the House) . It is the highest building of the city, from the top of its 98.50 meters is possible to enjoy a 360° view of the city, a must if you're visiting Venice!!!
http://venice-tourism.com/en/places/san-marco-district/saints-mark-bell-tower