Join the news democracyWhere your votes decide the Top 100
We may have our sights set on Mars but there are places a lot closer to home yet to be fully mapped...
Following last year's catastrophic earthquake in Pakistan, people were shocked to witness a new island emerge from the sea, just over 1km from the shore.
Earlier this year a team of explorers discovered 39 new caves stretching over 10 miles in Vietnam's Phong Nha-Ke Bang National Park, which is home to the world's largest limestone cave network.
Believed to be the world's highest unclimbed mountain, Gangkhar Puensum in Bhutan, stands at 7,570m. The climbing of mountains higher than 6,000m is prohibited in Bhutan.
Located at the bottom of the Pacific Ocean and with a depth of nearly 11,000m, the Challenger Deep is the deepest known point in the Earth's seabed hydrosphere.
Considered the remotest island archipelago in the world, Tristan da Cunha is 1,500 miles from the nearest continental land, South Africa. As of 2010 some 264 people inhabited the islands.
Situated at the tip of Queensland, Australia, the Cape York Peninsula s one of the last remaining wilderness areas on Earth. Some regions have only been explored by helicopter.