Question: When were each of the New Seven Wonders of the World constructed?
Answer: Great Wall of China: 7th century BC
Petra: 5th century BC
Colosseum: AD 70-80
Chichén Itzá: AD 600-900
Machu Picchu: 1438-1472
Taj Mahal: 1631
Christ the Redeemer: 1922-1931
Categories: History, Architecture