The portal functions as a drain hole swallowing around 1,360 cubic metres of water per second. A bizarre portal with a spinning vortex effect has opened up in a lake in the United States once again.

An optical illusion is a visual phenomenon where our perception of an image differs from objective reality. This image is perceived as a visual impression of a swirling tunnel or vortex effect. These ...

A bizarre "portal from hell" has opened up in a lake with a weird spinning vortex effect. The gigantic 75ft-wide hole took place after water levels in the Lake Berryessa reservoir in eastern Napa ...

A bizarre "portal from hell" with a strange spinning vortex effect has left people baffled after opening up in a lake. The terrifying 75ft-wide hole acts as a huge drain for the Lake Berryessa ...