For those who frequent Stockholmís transportation system, perhaps the most immediately recognizable of the stations is the main foyer (named the T-Centralen Station), which holds the blue and white designs of Per Olof Ultvedt. This huge painting has graced the stationís rocky ceiling since 1975, and depicts people diligently working among the scaffolding. The rich artwork isnít confined solely to the metro walls: some of the actual trains are customized with bold, geometrical designs as well. Bringing art to the masses doesnít come without a cost, though. The city spends $1.6 million a year on upkeep and graffiti removal in an effort to ensure that their one-of-a-kind metro station remains home to the most pleasant of distractions.