Archaeologists exploring the lost Maya city of El Mirador claim they've found the world's biggest pyramid. The massive structure, called La Danta (The Tapir), may have its summit hidden beneath Guatemala's jungle canopy. Yet its volume is reckoned to be larger than that of the Great Pyramid of Khufu in Egypt's Giza Plateau. The city itself, dubbed the 'Maya Cradle of Civilization', is the size of a modern metropolis; bigger than downtown Los Angeles. And experts believe there are thousands more pyramids yet to be found.
