How does the 7 wonders of the world affect the world?
The Seven Wonders of the Ancient World (and there are other sets of Seven Wonders, as well) “affect the world” by giving anthropologists, perhaps archaeologists and sociologists (I’ll be rather vague and just say “historians”) a picture of how world culture has evolved (assuming that there are important reasons behind each of the Wonders). However, they have absolutely nothing important to do with the physical world beyond taking up space.