Door to Hell: In Turkmenistan an eternal fire is coming from a massive crater, created by accident after a drilling incident in a Gas mine.
Rainforest sinkhole: (Jaua-Sarisarinama National Park, Venezuela) A sinkhole is the natural depression of or hole in the Earth’s surface.
The Puente del Inca: (Argentina) A natural rock bridge covered by bright orange and yellow bacteria mats created by natural sulphur springs which cover the rock walls
Bryce Amphitheatre: (Bryce Canyon National Park, Utah, USA) The bizarre pinnacles of limestone rock and eroding fins create a majestic display
Tufa Pinnacles: (Mono Lake, Sierra Nevada, USA) Mono Lake is a closed hydrological basin meaning water flows into it but it doesn’t flow out. The only way for water to leave is through evaporation
The Champagne Pool: (Waiotapu Geothermal area of New Zealand) A colourful hot spring with a surface temperature of 74 degrees celsius. It bubbles due to uprising carbon dioxide
Tsingy: (Ankarana National Park, Northern Madagascar) A series of carpet limestone pinnacles
Badwater Salt Flats: (California, USA) This is the lowest point of the United States at -282 feet
The Great Blue Hole: (Belize) A large submarine sinkhole which is over 984 feet across and 407 feet deep formed during several episodes of quaternary glaciation when sea levels were much lower.
Hiller Lake: (Western Australia) Scientists cannot explain the pink colour although they have proven it is not due to the presence of algae | Read more on WhereCoolThingsHappen.com
Balls Pyramid: (Lord Howe Island, New South Wales, Australia) The world’s tallest sea stack, at 562 metres formed through processes of coastal geomorphology, which are entirely natural. Time, wind, and water are the only factors involved
Elephant Rock: ( Valley of Fire State Park, Nevada, USA) A strange natural sandstone rock formation which looks like an elephant
Crater Lake: (Oregon, USA) Formed about 150 years ago by the collapse of the volcano Mount Mazama
The Peculiar Pinnacles: (Nambung National Park, Western Australia) These amazing natural limestone structures, some standing as high as five metres, were formed approximately 25,000 to 30,000 years ago after the sea receded and left deposits of shells
The sliding stones: (Death Valley, California, USA) The movement of the rocks continues to baffle experts who are at a loss to explain why they have moved across a perfectly flat bed despite weighing up to 700 pounds each
The Moeraki Boulders: (New Zealand) The gigantic boulders started forming on the ocean floor and can now been seen sitting mysteriously on the coastline thanks to centuries of erosion
The Beauty Pool: (Yellowstone National Park, USA) The hot spring allows luminous algae and bacteria to flourish creating a vivid array of colours.