Final answer:
UNESCO believes World Heritage sites belong to all peoples and multiple stakeholders are involved in deciding how historical and religious sites should be treated.
Step-by-step explanation:
UNESCO's position that "World Heritage sites belong to all the peoples of the world, irrespective of the territory on which they are located" is based on the belief that cultural and natural heritage should be preserved and shared by all. The organization recognizes the universal value of these sites and aims to protect them for future generations.
When it comes to deciding how historical and religious sites should be treated, multiple stakeholders are involved. UNESCO plays a significant role in setting guidelines and standards for the preservation and management of these sites.
However, the local communities, governments, and experts in the field of cultural preservation also have a say in the decision-making process.
Overall, the goal is to strike a balance between preserving the authenticity and integrity of these sites while allowing for sustainable use and enjoyment by present and future generations.