Great Pyramid of Giza

• A hidden corridor, 9 m long and roughly 2 m wide, has been unearthed by scientists close to the main entrance of the 4,500-year-old Great Pyramid of Giza.
• The discovery was originally made by the ScanPyramids project in 2016 using a non-invasive technique called cosmic-ray muon radiography.

The greatest pyramid

• The Great Pyramid of Giza is the largest of the three pyramids in Giza, originally standing roughly 147 m above the Giza plateau.
  • Giza Pyramids are the only surviving structure of the seven wonders of ancient world.
• Construction was started in circa 2550 BC, during the reign of Khufu, often considered the greatest pharaoh of Egypt’s old kingdom.
• It is estimated that the pyramid was built using 2.5 million stone blocks, each weighing between 2.5 and 15 tonnes.
• Tomb art includes depictions of ancient farmers working, fishing and fowling, carpentry, costumes, religious rituals and burial practices.