many of these particular granite formations were shaped after the cooling of molten rocks, and powerful heat metamorphosized the granite deep within the earth.

rio's mountains are the best place to visit to get an idea of what this region once looked like - with over 46 square miles of tropical rain forest, walking trails, stunning views of the city, waterfalls, creeks and wonderfully varied greenery. rio is possibly the largest urban reserve in the world and it only takes about 20 minutes to fully immerse in amazing nature.