On any given day, skateboarders are kicked out by security guards when attempting to ride on private property, such as an office building downtown. Red Bull Daily Grind Project converted the 23rd floor of an office building in Chicago into a makeshift skate park. What's more, Red Bull hired fake office workers in suits to sit around the desks, in boardrooms, and walk around hallways to make the location look as convincing as possible. Six sponsored riders participated in this project, including Ryan Sheckler, Felipe Gustavo, Joey Brezinski, Corbin Harris, Sewa Kroetkov, and Gard Hvaara. Watch the surreal video of their latest skateboarding adventure.