DENVER - For months - faces have been creeping up and creeping out people all over Denver.
From entrances to interstates, to entrances to nail salons - small baby doll faces attached to buildings and walls have been spotted all over the region.
Authorities say they are unsure who is responsible for the faces.
Most say they are disturbing – but some think they are cool.
Joseph Ramirez, owner of the mutiny information café, says the faces first appeared on his building last summer, but he says he and the other owners have no idea who is behind them.
"I remember we were all texting each other, sending each other pictures like, 'Who is this? Who did this?'" said Ramirez.