Can anyone explain? Please 🙏

Yes. That is the top of a building, not the underside of a bridge. The motorists are simply making a left turn but the angle and optics makes the building in the bottom corner look like a bridge. ……I think

Roof top looks like a river. Once you see it you can’t not see it. Proof that we all want to see what is presented. Simply suggest something strange is happening and the brian will create the strangeness.

The simplest answer is always the best answer. It's an interdimensional gateway.

Shooting the video from a higher point and this is the rooftop that is hiding the view of the street below... And the rooftop floor giving the illusion like a rever..

No prob: the edge you’re looking at is a balcony. This is an optic illusion created by a strong zoom which makes the background seem just as close as the foreground. The road continues underneath the balcony.

This is picture on video. The bridge was cut from another picture and placed on the video to make the cars disappear. I just did some manipulation of the video just to explain my idea

What’s understood don’t need to be explained.

Yes, what your mind first pattern-matches here is what looks like a bridge over a polluted stream, but that's actually a rooftop of a building, as viewed from a window higher up. The vehicles are simply turning left at the corner, and go behind the building.

There’s no bridge or river it’s the top of a building