optical illusion? Here's one we think you'll appreciate.In the mind-boggling photo, it shows a mural in Germany which has now gone viral on the open forum.
The building has a grey exterior with blue paint that gives off an optical illusion.So can you figure out what's going on?The Reddit poster shared the image with the caption: "Optical illusion mural by Peeta in Mannheim, Germany." Since it was shared a month ago, it racked up 23,900 upvotes and hundreds of comments.Many users were left baffled by the image, while others were mind-blown by it.
One fan wrote: "Are you telling me that's all actually just flat? If so, that's f***ing insane."Another added: "Yeah I don't think I can get my brain to believe that." A third commented: "Same.
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