World Heritage Day is observed on April 18 every year with an aim to increase awareness about the importance of protecting culture and diversity. Know more about it. Monuments and ancient buildings are an asset to the world. They make for the rich heritage of the nation.Therefore, World Heritage Day is a collective effort of the communities in the world to do the needful. This day is celebrated to maintain the legacy and save the rich heritage which has been given to us by our ancestors. Shared Cultures, Shared Heritage, Shared Responsibility is the theme of 2020. It is decided by the International Council on Monuments and Sites every year. A World Heritage Site is a place that is listed by the United Nations Educational Scientific and Cultural Organization as of cultural importance. World Heritage Day gives us an opportunity to conserve and preserve our heritage culture which is of ancient significance. They have an outstanding universal value. Sites are nominated to and designated by the World Heritage Convention. The Convention recognizes the way in which people interact with nature, and the basic need to preserve the parity between both.The most significant feature of the 1972 World Heritage Convention is that it binds together in a single document ‘the concepts of nature conservation and the preservation of cultural properties’.