5. Lake Hillier (Middle Island, Western Australia)

Have you ever seen a pink lake? That was probably a dream or a sci-fi movie! Actually, a pink lake exists in reality and is located in Western Australia. It is not yet clear why the Hillier is pink, however, it is totally safe to swim in it. Experts claim that the algae or bacteria that are found in this salty lake turn its waters pink.

6. Rainbow Mountains (Zhangye Danxia, China)

The Rainbow Mountains look as if they were painted by artists. The fact is that this phenomenon is natural. The various colors formed thanks to the differing layers of sandstone and minerals. It must have taken millions of years for such a wonderful miracle to form. Nowadays this is a national park where thousands of visitors have the chance to see this unusually colorful geological feature.