Every year, students of Brno University of Technology create funny graffiti around the dormitories Pod Palackého vrchem (at Palacký hill) to celebrate their graduation.
2009 graduates of the Energy Institute
Nice word play. Prdel means butt in Czech, but it is used as universally as the f-word in English. So the writing could be translated as: It was fucking hard but we've clicked the right answers.
Stairway to the tram station
Simpsons are quite popular here...
Matt Groening could sue the VUT students for royalties :)
P.S.: Check out this gallery of pictures captured at “Palačák” dormitories. Slightly NSFW.