The Invasion Source/credit: Paul Tsui and National Geographic What am I looking at? This picture was entered into National Geographic travel photo competition by Paul Tsui. It depicts a real scene of Macau, with the Grand Lisboa Hotel looming in the background. More optical illusions:Ominous birdTree MuralTrail Runner Going into the WoodsWinter TornadoBlack holeLarger than lifeFlying Cargo ShipNASA doctored photos?
