Roig’s model found that using a single ramp would have been insufficient and would have required nearly half a century of construction to reach the pyramid’s completion.

In the four and a half millennia since the ancient Egyptians built the Great Pyramid, numerous significant earthquakes have rattled Giza. That the iconic landmark has withstood these tremors without sustaining significant damage is testament to its design,

There's so much history to see in Egypt, often at such a reasonable price (especially as part of a group rate), that it makes for a great trip for seniors.