time capsules

Traces the history of time capsules, explaining what they are and who invented them, and looking at a number of notable time capsules.

Describes the discovery and excavation of the ruins of the ancient city of Pompeii, buried by the eruption of Mount Vesuvius in 79 A.D., and what has been learned about life there.

When Benny decides to dig a hole in the back yard, Grandfather gives him an old map that leads to a special discovery.