Discover the most amazing and unusual wonders the world has to offer, from Greece’s Meteora Monasteries to India’s Ajanta Caves and from Belize’s Great Blue Hole to Mexico’s Cave of Crystals. Get up close to their unique features and marvel at their breathtaking dimensions. What threats and challenges to these special phenomena face, and what is being done to ensure their survival for future generations to enjoy? Perfect for readers 9 and up.
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