How Many Wonders of the World are There?

There are seven wonders in the ancient world. However, there are 7 different lists of 7 wonders of world, such as the original which was called ‘7 wonders of the ancient world’, there are the 7 Manmade wonders of the world, the 7 Natural wonders of the world, the 7 wonders of the African world, the 7 wonders of the Medieval world, and the 7 wonders of the Underwater world. A total of 7 official lists of 7 each. So the correct answer to how many wonders of the world is 49 official wonders and many more unofficial.