In a surreal landscape of colours, dominated by luminescent ponds of yellows and greens, boiling hot water bubbles up like a cauldron, whilst poisonous chlorine and sulphur gases choke the air. Known ...

Earth is beautiful, no denying it. But when earth happens to make you feel like you could well be on another planet, it reaches another level. From a crystal-filled cave to a salty red river, these ...