Every year on April 18, there is a celebration known as World Heritage Day to encourage the preservation of the world's natural and cultural heritage. The day serves as a reminder of the need of maintaining and raising public awareness of places of great historical, cultural, and ecological value. Currently, there are more than 1,100 sites in more than 160 countries on the UNESCO World Heritage List. People and organisations join together on this day to honour and promote the preservation of these priceless locations since they stand for humanity's common cultural and natural heritage and ought to be protected for next generations.