If You Like Optical Illusions On A Big Scale,

check out these one's below, above is the new ballroom carpet being installed at the Marriott Solana hotel in Southlake, Texas,

the so-called El Grifo Mágico, or magic tap,

Julian Beever is an European street artist,

the above painting is by Kurt Wenner and is located at London’s Waterloo Station if you want to see more checkout, http://weburbanist.com/2008/11/29/architecture-optical-illusions/ great paintings.