Sukhna Lake :: Home to 1 million people, Chandigarh is considered the ‘cleanest city’ in India and has the highest per capita income. Chandigarh also has largest number of vehicles per capita, thanks in large part to the wide, well-maintained roads and parking spaces, designed by Le Corbusier, that are all over the city and ease local transport. In addition to the parks and green spaces, Le Corbusier included Sukhna Lake, a large man-made reservoir that is used solely for recreation. (Image © J. Carl Ganter / Circle of Blue)