The Great Sphinx is probably one of the most recognized symbols left behind by an ancient culture. Located in Giza, this sculpture was carved out of a plateau of bedrock. The creature is surely an irrational one--a combination of a lions body and human head. It is believed to have symbolized the Pharaoh's role as the god Atum here on earth. Currently it is undergoing restoration so that this huge monolith will not be lost forever.
The reason the Sphinx doesn't have a nose any more is because Napoleon's forces shot it off with a canon by accident. Damn French.