Kathmandu. World Heritage Day is being observed today with the objective of spreading awareness for the conservation of heritage sites.This day has been observed since April 18, 1983, with the aim of protecting World Heritage sites under the United Nations Educational, Scientific and Cultural Organization (UNESCO). Currently, Nepal's Kathmandu (Basantapur, Patan and Bhaktapur Durbar Squares, Changu Narayan, Pashupatinath, Boudhanath, Swayambhunath), Lumbini, and Chitwan and Sagarmatha National Parks are listed as World Heritage sites.On this occasion, a heritage walk is being organized in the capital this morning. Pawan Kumar Pokharel, head of the Tourism Office under the Ministry of Culture and...