A technicolor geothermal geyser accidentally created in 1964 when a well was drilled and never properly capped. Thermophilic algae colonized the calcium carbonate mounds in impossible shades of green, red, and orange.
In 1964, a well-drilling company punched into a geothermal pocket in the Nevada desert. They capped the well, but it wasn't tight enough. Over decades, superheated water found its way out, depositing dissolved minerals and building a cone — then three cones — now perpetually erupting, perpetually building.
The colors are alive. Thermophilic algae — organisms that thrive in extreme heat — coat the calcium carbonate structures in psychedelic greens and reds. The formation grows several inches each year. It is not finished becoming what it will be.
For most of its existence, Fly Geyser was accessible only to trespassers. The Burning Man Project purchased the 3,800-acre property in 2016 and now offers limited guided access. Most people never see it in person. Those who do describe it as the closest thing to an alien landscape on Earth.