And what about the Great Pyramids of Giza?

NPR: West African Drug Trade, War of Words in Sudan

Ludwig was right there with his open wallet and energy for a mapping project in Giza, where archaeologist Mark Lehner is looking for evidence of the civilization that built the Great Pyramids.

FORBES: Treasure saver

Ludwig was right there with his open wallet and energy for a similar mapping project in Giza, where archaeologist Mark Lehner is looking for evidence of the civilization that built the Great Pyramids.

FORBES: Creative Giving: Treasure saver