Environment is everything that is around. It can be living or non-living things. It includes physical, chemicals and other natural forces. Living things live in their environment. They constantly interact with it and change in response to conditions in their environment. We have seen green patches turning into a dessert, rivers submerge the areas, increased alkaline in the water levels and make loose the species like a pack of cards. If experts are to be believed, then we are losing between 10,000 and 100,000 species each year or are getting extinct each year. So we need to do thinking how and why should environment be saved. In cities we need environment more vehemently than any other part of the inhabitation. This paper examines the need for parks in a metro city. It compares two parks of two famous cities of the world.