LOOK: People can’t figure out if this is a picture of a wall or a river

People are freaking out...

First there was The Dress. Now there is ‘Wall or River’.

As reported by Buzzfeed, on Thursday a German app called Jodel upload a photo of bench in a park to their Facebook. It seems innocent on first glance.

But then here’s the question – is it a photo of a wall or a river?

Jodel

It’s at the back of the photo, if you can’t spot it.

After spreading through German social media, it has now hit the English-speaking internet. And it is driving people insane.

@srubenfeld @broderick @RachaelKrishna pic.twitter.com/svP8hQtYXH

— Maximilian Zender (@ZendersZone) May 18, 2017

damn, at first I was like RIVER but then I was like....wall???

— Loryn Brantz (@LorynBrantz) May 18, 2017

What do you think?