1. The restoration of the Palace of Versailles in France, which was damaged during the French Revolution and World War II. The Palace is now one of the most popular tourist attractions in France.
2. The preservation of the ancient city of Petra in Jordan, which was designated as a UNESCO World Heritage Site in 1985. Petra is now visited by millions of tourists each year.
3. The restoration of Machu Picchu in Peru, which was damaged by natural disasters and uncontrolled tourism. The site is now carefully preserved and attracts over a million visitors a year.
4. The conservation of the Great Barrier Reef in Australia, which is one of the world's most important natural wonders. Efforts to reduce pollution and protect the reef from damage have been successful, and the site remains a popular destination for tourists.
5. The preservation of the Angkor Wat temple complex in Cambodia, which was threatened by looting and urban development. Conservation efforts have helped to protect the site, and it is now a major tourist attraction and a symbol of Cambodian national identity.
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