Pyramid Of Chephren Reopens After Repairs

Egypt’s second largest pyramid, Chephren, reopened to tourists Wednesday after a 10-month closure to repair interior damage caused by humidity.

The $294,000 restoration was started in October after a chunk of limestone fell from the ceiling of the burial chamber in the 4,500-year-old pyramid.

Humidity is the greatest threat to the pyramids, which - built between 2589 and 2530 B.C. and named for pharaohs who ruled Egypt - are the only survivors of the Seven Wonders of the World.