12. Grand Prismatic Spring
It is located in Yellowstone National Park. It is the largest geothermal source in the United States and third in the world. His views, he certainly deserves a place in the list of the most bizarre places on the planet. Formed source of thermophilic bacteria, which produce colors ranging from green to red. The colors depend on the ratio of chlorophyll and carotenoids, and the water temperature.
The Grand Prismatic Spring in Yellowstone National Park is the largest hot spring in the United States, and the third largest in the world, after Frying Pan Lake in New Zealand and Boiling Lake in Dominica. It is located in the Midway Geyser Basin.
Grand Prismatic Spring was noted by geologists working in the Hayden Geological Survey of 1871, and named by them for its striking coloration. Its colors match the rainbow dispersion of white light by an optical prism: red, orange, yellow, green, and blue.
The first records of the spring are from early European explorers and surveyors. In 1839, a group of fur trappers from the American Fur Company crossed the Midway Geyser Basin and made note of a «boiling lake», most likely the Grand Prismatic Spring, with a diameter of 300 feet (90 m). In 1870 the Washburn–Langford–Doane Expedition visited the spring, noting a 50-foot (15 m) geyser nearby (later named Excelsior).
It was the strangest places on earth. I hope that the article was of interest to you. Thank you for attention!