This week's free picture

Just inside the entrance to the Valley Temple of Chephren is a hole in the ground. For reasons best known to themselves, tourists have thrown money down into the hole, a useful perk for the Gizeh Haram guards.

This picture is copyright Kendall K. Down. You may copy it for educational purposes or for use on a website or in a free publication, so long as due credit is given. For commercial use please contact