No, the builders haven't been at the LSD again.
These dizzying façades and warped structures aren't genuine constructions, but the architectural illusions of Berlin-based fine art photographer Markus Studtmann.
Passionate about all things architectural, Studtmann creates his kaleidoscopic works by stitching together photographs that play with the lines and arcs of the real-life buildings. Escher would be proud.
Head over to Studtmann's portfolio to see more of his work.