1) Michael Phelps, an American swimmer, has won a total of 28 Olympic medals, including 23 gold medals, making him the most decorated Olympian of all time.

2) In Aztec mythology, the god Quetzalcoatl is associated with the planet Venus, which was seen as a celestial embodiment of his power. His connection to Venus also ties into his association with fertility, renewal, and the cycles of life, as Venus is associated with beauty, love, and abundance.

3) The highest-grossing concert tour of all time is U2's "360° Tour," which earned over $735 million in ticket sales.

4) The Giza Pyramid Complex, situated on the outskirts of Cairo, Egypt, is home to the iconic Great Pyramid of Giza, one of the Seven Wonders of the Ancient World. It was built as a tomb for the pharaohs and represents the pinnacle of ancient Egyptian architecture and engineering.