por Jessie Berg 9 anos atrás
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por Maxzine Rossler
por Daniel Kim
por Manuela Benadusi
por Diana Cecilia Marquez Morales
2.3 million blocks of rock weighing 5.9 million tons
Pyramid of Khufu
for some 100,000 workers labored over 20 years
ancient Egyptian kings
also known as
Pharaohs
Step Pyramid