Simplify the following text for a Grade 9 native English-speaking person.
Original: Giza is most famous as the location of the Giza Plateau : the site of some of the most impressive ancient monuments in the world , including a complex of ancient Egyptian royal mortuary and sacred structures , including the Great Sphinx , the Great Pyramid of Giza , and a number of other large pyramids and temples .
Simplified: There are a complex of ancient Egyptian royal mortuary and sacred structures there . These include the Great Sphinx , the Great Pyramid of Giza , and a number of other large pyramids and temples .