How may ajooba are in the world?

The term "ajooba" can refer to various things, such as wonders or remarkable phenomena, but it is often used in different cultural contexts. If you're referring to the Seven Wonders of the World, there are both ancient and modern lists, with the most recognized being the Seven Wonders of the Ancient World and the New Seven Wonders of the World. If you meant something else by "ajooba," please provide more context for a more accurate response.