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seven underwater wonders of the world deep sea vents fiji australia oceania belize barrier reef great galapagos islands ecuador lake baikal russia eurasia palau reefs northern red asia
seven wonders Medieval world THE LEANING TOWER OF PISA ITALY EUROPE CATACOMBS ALEXANDRIA EGYPT AFRICA STONEHENGE ENGLAND PORCELAIN NANJING CHINA HAGIA SOPHIA TURKEY ASIA EURASIA GREAT WALL TAJMAHAL INDIA