Nine years later, Hawass explored the southern shaft on live television. As the world held its breath, a tomb-raiding robot pushed a camera through a hole drilled in the copper pinned door -- only to reveal what appeared to be another door.
The following day, Hawass sent the robot through the northern shaft.
After crawling for 213 feet and navigating several sharp bends, the robot came to an abrupt halt in front of another limestone slab.
As with the Gantenbrink door, the stone was adorned with two copper pins.
"I dedicated my whole life to study the secrets of the Great Pyramid. My goal is to finally find out what's behind these secret doors," Zahi Hawass, Egypt's Minister of State for Antiquities Affairs, told Discovery News in a recent interview.
In the attempt to solve the mystery, Hawass established the Djedi project, a joint international-Egyptian mission, which he named after the magician who Khufu consulted when planning the layout of this pyramid.
"I selected the Djedi team during a competition that I coordinated to pick the best possible robot to explore the shafts in the Great Pyramid," Hawass said.