Known as Makal-Babu-Ko-Thaan, Observatory Hill is one of the oldest sites in the Darjeeling. The place has a rich historical backdrop. As per a legend, there is a myth that Lord Indra's scepter (Dorje), representative of his thunderbolt, had fallen at this place (ling). Therefore, the city got its name from two words 'Dorje' and 'ling'. The hill is quite popular amongst tourists due to its Hindu and Buddhist temples.