This is the Yaxi Expressway in southwest China's Sichuan province. It features some of the highest and longest bridges in the world.
Here's a little article about it: https://themindcircle.com/yaxi-expressway-traversing-the-clouds/
Side note: am i the only one who finds this crazy scary to look at? I'm sure it's awesome driving on it, but looking at it from afar it looks wild.
I am willing to bet that it is fine, and completely safe. Knowing Chinese engineering and Infrastructure, they likely put more factors and thought into designing it than Statesian engineers do in designing a Skyscraper.
I'm sure it's perfectly safe. It's just weird to think of a highway being that high up in the air.