A waterfall in the Anina Mountains that flows over a perfectly domed mound of moss, spreading across it in a thin fan of water that forms a near-perfect circular curtain — described as the most unique waterfall in the world.
At the 45th parallel — exactly halfway between the equator and the North Pole — in the Anina Mountains of western Romania, a spring emerges from a limestone cliff and falls six metres onto a moss-covered mound below. This would be unremarkable but for what has happened to the mound.
Over centuries, the calcium-rich water from the spring has deposited calcium carbonate onto the moss, building up a domed structure that now stands roughly six metres in diameter. The moss has grown with the dome, covering it completely in a vivid green that contrasts with the water flowing over it. The water reaches the edge of the dome, which is roughly circular, and falls away in a thin curtain all around its circumference.
The result, from any angle, is a near-perfect umbrella of falling water. The dome is the cap. The water is the edge. The clarity of the stream means the water is visible only where it catches light, and in the right conditions — morning sun, slight mist — it is nearly invisible, so that the dome appears to be simply suspended in air with water appearing from nowhere around its edges.
In 2021, heavy flooding shifted the limestone and damaged the dome structure significantly. A section of the arch collapsed. The waterfall will eventually rebuild itself over geological time — the spring continues to flow, the calcium carbonate continues to deposit. The dome will return. It will simply take longer than a human life.