The body of Fir'awn, believed to be Pharaoh Rameses II, is currently on display in the Royal Mummies Chamber at the Grand Egyptian Museum in Cairo. His mummy was discovered in the 19th century and has been preserved for centuries.
It's important to note that the claim that Rameses II is the specific Pharaoh mentioned in the Quran is a subject of debate among historians and theologians. However, the body of Rameses II is the most famous and accessible example of a preserved Pharaoh in Egyptian history.