Scariest level/area in a non-horror game?

Like the title says, what is one of the scariest levels/areas in a non-horror game that you've played? And why?

Mine is Ravenholm from Half-Life 2. I first played that game years ago on my old account, I was a teenager back then, plus I hadn't gotten into horror games yet. So it scared me quite a bit. It still scares me, but just not as much.

The reasons why it was scary for me? The eerie atmosphere, the zombies, and it's the first time you encounter the poison headcrabs. I hate those things, they still freak me out! That hissing noise when they spot you, and that awful screech when they jump
and attack you? Gives me chills. The worst part is that they lower your health to one point! And not to mention the zombie that carries them on his back and throws them at you! Rude. >:U I make sure to have plenty of grenades with me.

Another area worth mentioning is the ant-lion nest area in episode 2. I'm not a fan of insects. So when I first played that game and found out you have to go through the ant-lion nest? I thought I was gonna cry. That area doesn't bother me as much now, but
I still cringe a bit when I play that level.

Now it's your turn to share. Thanks for taking the time to read through this.

:)