Optical illusions often walk the line between cool and creepy – there's nothing quite like having the deceptiveness of our own brains pointed out to make us start questioning everything. But they get even weirder with the addition of some good old uncanny Victorian photography. And some skulls thrown in for good measure.
Yep, some Victorian era postcards have recently gone viral on Instagram, and they demonstrate how the public penchant for illusions long predates the internet. We've seen vintage skull-based optical illusions before, but these might be the creepiest yet. There's just something unsettling about Victorian children.
