At 196 metric tons, the Tsar Bell is by far the largest existing bell ever cast. The next one in line is the Bell of Good Luck in Henan Province, China; it weighs 115 metric tons. There is, however, a bell that is quite a lot heavier than the Tsar Bell, but it was lost in 1608 when the barge that was carrying it sank in the Bago River in Myanmar. It was called the Great Bell of Dhammazedi and it weighed a colossal 297 metric tons. You can find the details of what happened to it here . See…