Darjeeling Himalayan Railway (DHR), popularly known as the 'Toy Train' is one of the main attractions of the region. The track on which the train runs is only 600 millimeters wide. The size of the train is commensurate giving it the name 'Toy Train'. Narrow Gauge trains are used in parts of India to travel to hill stations. The most magnificent train journeys through the narrow gauge are the gorgeous terrain. UNESCO has declared the DHR as a World Heritage Site.