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Colosseum
Acropolis of Athens
Machu Picchu
Petra
Snake
Jaguar
Fish
Lizard
Rose City
Canyon Castle
Hidden City
Stone City
Gaur
Elephant
Himalayan brown bear
Rhinoceros
Corcovado
Misti
Sugarloaf
El Panecillo
6 years
8 years
577 years
1,200 years
Colosseum
Petra
Machu Picchu
Christ the Redeemer
Carvings on each brick
Armed guards
Secret spies
Detailed journals from workers
Lightning
Thieves
Earthquake
Wind
Floods
Earthquakes
Soil erosion
Invasive pests
10 questions remaining