A World Heritage Site is a landmark or area recognized by the United Nations Educational, Scientific and Cultural Organization (UNESCO) for its cultural, historical, scientific, or other forms of significance. These sites are considered important for the collective interests of humanity and are protected to preserve their unique value. Examples include ancient ruins, historic cities, and natural wonders. Being designated as a World Heritage Site helps to raise awareness and promote conservation efforts. It also encourages tourism, allowing people to experience and appreciate the beauty and history of places like the Great Wall of China or the Pyramids of Giza.