Why is Ramses II so famous?

Can you explain why Ramses II, the third pharaoh of the Nineteenth Dynasty of Egypt, is so renowned? What makes his legacy so significant and enduring in the annals of history? Was it his military conquests, his grandiose temples and monuments, or his role in shaping Egyptian culture and society? As a powerful ruler, what strategies did he employ to maintain his grip on power and leave an indelible mark on the world?