Hidden ad in advertisement page Source/credit: Filipe Salazar and Karen Castañeda What am I looking at? Can you the kitchen build into this newspaper? It is a hidden ad. The advertisement page of this newspaper is used as a giant ad for HiperCentro Corona, a Colombian company selling construction materials. More optical illusions:Ominous birdBaby BigfootCanoe in the WinterImpaled windshieldFlying catUFOToe socks?Underwater Waterfall