Minimize your impact at ancient sites
For a fragile archaeological site like the Pyramids of Giza, near Cairo, tourism is both a boon and a threat. While ticket revenues do help fund conservation efforts, the mere presence of travelers can adversely affect monument conditions, according to Dr. Zahi Hawass, secretary general of Egypt’s Supreme Council of Antiquities. Have your guide or driver park at designated areas that are a short distance from the Pyramids, and then walk to the site. "Giza’s most delicate areas include enclosed quarters and tombs with delicate paint, where humidity can build up from our breath," Hawass says. "So reduce the time you spend inside, avoid flash photography, refrain from touching walls and objects, and don’t enter with large purses or bags—they can brush up against ancient hieroglyphics."