The Impossible Bridge Repair

M.C. Escher himself would be proud of this photo that redditor zibin caught of a work crew in Singapore. The composition appears to form a Penrose triangle.

These workers are using a Genie lift with an articulating boom. They parked it on the pavement instead of on the grass underneath the spot they are working on. The angle that hides the arm of the lift is what makes it an optical illusion.