Russia is the largest country in the world; its total area is 17,075,400 square kilometres (6,592,800 sq mi). There are 23 UNESCOWorld Heritage Sites in Russia, 40 UNESCObiosphere reserves,[147] 41 national parks and 101 nature reserves. It lies between latitudes41° and 82° N, and longitudes 19° E and 169° W.