Between 1964 and 1968, the ancient temples of Abu Simbel in Egypt were carefully moved to a new location to avoid being submerged by the rising waters of Lake Nasser. This lake was created by the construction of the Aswan High Dam, a massive hydroelectric project on the Nile. To save the temples, which date back to the 13th century BCE and were built by Pharaoh Ramses II, an international team of experts worked together to relocate them. The United Nations Educational, Scientific and Cultural Organization (UNESCO) led the effort, bringing together professionals from various countries, including engineers, archaeologists, and architects. The project was overseen by Polish archaeologist Kazimierz Michałowski and involved up to 3,000 workers, costing around 40 million dollars at the time, mostly funded by international donations. The relocation process involved cutting the temples into large stone blocks, some weighing up to 30 tonnes, using specialized wire saws. This required extreme precision to prevent the sandstone from cracking or distorting the carved faces of the pharaoh. Before transport, the stone was reinforced with synthetic resin to prevent it from breaking. Over 1,000 blocks were numbered and stored before being moved to a new location 65 meters higher and 200 meters inland from the original site. Some sources suggest the project involved 1,035 blocks in total, while others break it down into 807 blocks for the main temple and 235 for the smaller one, with differences likely due to how smaller pieces were counted. Once at the new site, the blocks were reassembled on a specially constructed artificial cliff made of reinforced concrete, which was then covered with the original stone to create the appearance of a natural rock formation. However, the new location’s different altitude and latitude slightly altered the alignment of the temple with the solar calendar. This caused the famous solar alignment—where the rising sun illuminates the statues of Ramses II twice a year—to shift by one day. Despite this minor change, the relocation was successfully completed in September 1968, and the temples were inaugurated in their new location. Other nearby monuments, such as the temple of Amada and those on the island of Philae, were also moved, though the methods used varied depending on the fragility of each site. The successful relocation of Abu Simbel had a major impact on global heritage protection efforts and played a key role in the creation of the UNESCO World Heritage Convention. This agreement now safeguards over a thousand cultural and natural sites around the world, ensuring their preservation for future generations.