It's possible to produce amazing eye-tricking image on Photoshop, but Mother Nature can also rustle up incredible optical illusions, too - as these incredible images show. In fact, the planet is brimming with mind-boggling natural phenomena. One of the most baffling is the 'underwater vortex' in the Indian Ocean, where water appears to be flowing into a gigantic hole in the seabed. Then there's Blood Falls in Antarctica, which appears to be the horrific aftermath of a violent battle, with a red liquid cascading over the white Taylor Glacier. There is also a startling cloud formation that looks just like a UFO.
http://www.dailymail.co.uk/travel/travel_news/article-3569209/Try-not-double-planet-earth-s-bizarre-natural-optical-illusions.html
