There were many stargates all over the earth.

The ancient civilizations didn't have to use cars and they didn't have to destroy nature to clear the way for the roads. They usually used electromagnetic levitation vehicles and Stargates to travel between the cities. Every major city had one.

This is why archeology and history have no idea how all these ancient cities were built on top of the mountains, as no roads have been found, with huge magalitic constructions impossible to carry up the mountains even by today's standards, using the cranes and helicopters, because of the weight and how steep the mountains are.

Stargates have been found all over the world and most have been destroyed because parasites don't know how to actually activate them. Many of these were also found in the Middle East. In the regions of Iraq, Afghanistan, Syria, Libya and Egypt