Suck the Balls! is an installation by Niklas Roy, the first version in Krakow, the second in Prague.
"When sucking the balls which are surrounding his feet, the balls race through the transparent pipe system, creating a visually stunning scene. The journey of the little balls ends in a container above the ball pit, waiting for the climax of the operation: When the visitor pulls the release handle of the container, a fountain of balls splashes down onto his head in a joyful shower."
Views of Power is a project by Konrad Pustoła which reframes the point of view of the most powerful and influential people in Krakow, Poland by positioning photographs taken from those persons' office windows and posting them on billboards throughout the city. Some discussion on the project at New Art.