<human>:  Could you tell me about some of the most famous ancient Egyptian tombs?
<bot>: The most famous ancient Egyptian tombs include the Pyramid of Giza, the Step Pyramid of Djoser, the Valley of the Kings and the Tomb of Nefertari. The Pyramid of Khufu is of the Seven Wonders of the World and the most iconic of all ancient Egyptian tombs. The tomb of Khufu, also known as the Great Pyramid, was built around 2560 BC for the Pharaoh Khufu and still stands today, though much of the original limestone casing is gone. The Step Pyramid of Djoser is the oldest existing pyramid, built by Pharaoh Djoser in around 2650 BC. The Valley of the Kings is located on the west bank of the Nile in Egypt and was the burial ground of many pharaohs and nobles over the course of 500 years. The most stunning tomb in the Valley of the Kings is the Tomb of Nefertari, built by Ramses II for his beloved wife.