I was messing around in creative mode on a seed called bigdicks (don't judge me) and I stumbled upon this non player made structure in the desert. It was not near any villages or anything. Has anybody seen anything like this before. If you don't believe me, it is at x:-272 z:185
First introduced in 1.2.1, these well-like structures built of sandstone blocks and slabs generate only in the desert biome. Although assumed to be wells, their exact purpose and function is yet to be known. A proposed reason would be for filling buckets with water, since the middle water spring is infinite. They have a 1/1000 chance to be generated in any desert chunk, which makes them a rare sight.