The world is an awesome place and the power of nature reminds of how insignificant we really are. This includes a cave in Vietnam that is 4km in length and houses and entire jungle! Also, in antarctica there is a 1.3 million year old volcano that is nearly 4000 meters high. The incredible coloured mountains of the Arc of Danxia in China stretches a massive 1700 kilometres. In Indonesia there are a total of three stunning volcanic lakes with azure blue waters. The Stone Forest in Madagascar contains 90% of animal and plant species that are found nowhere else in the world! In 2005 thousands of frogs rained down on Odzaci in Sebia. The largest recorded hailstone is 15.24 centimetres in diameter.