Pyramid.

The Great Pyramid of Khufu (Cheops) at Gīza, one of the Seven Wonders of the ancient world, remains an awe-inspiring phenomenon and mystery to the modern world.

David Macaulay explores the history, archaeology, mythology, and religion of ancient Egypt when monarchs built pyramids with secret chambers to preserve their mummified bodies for eternity. King Khufu's tomb is the largest pyramid in the world, 40 stories tall covering 13 acres.