UNESCO World Heritage sites are increasingly threatened by climate change, with notable examples including the Great Barrier Reef, which suffers severe coral bleaching due to rising sea temperatures, and Venice, facing frequent flooding and deteriorating infrastructure from rising sea levels. Other sites like Glacier National Park are witnessing alarming glacier retreat, while Machu Picchu experiences increased erosion and landslides from heavy rains. The Galápagos Islands are threatened by rising sea levels affecting unique wildlife, and the Maldives is at risk of disappearing due to coastal erosion. Timbuktu's historic buildings are also degrading from extreme heat and desertification. These challenges highlight the urgent need for conservation efforts to protect these cultural and natural treasures.