Gravity Hills

08/28/25

“Why do objects appear to roll upwards and defy gravity on some hills?”

There are places where nature does not seem to obey the laws of physics. For example, on some hills, objects appear to roll upward instead of downward. There are countless videos on the internet showing the strangeness of these Gravity Hills. But what exactly is happening? Well, it turns out that the slopes of these hills are actually an optical illusion, making downhill look like uphill. These hills usually lack a clear horizon, making it difficult to accurately judge the real direction. Furthermore, a road might be at a slightly different angle than the incline, causing a visual cue mismatch. One example of a gravity hill is in Aragats, Armenia, as seen in the attached picture.

Image credit: https://i.ytimg.com/

• Earth/Climate science
• Neuroscience
• Physics