This underground parking garage in the heart of the city of Lyon is a fun surprise. You can't really see anything from the street, except for a small public park with an open square and a periscope in the center, inviting you to peer into it. The periscope looks underground, straight into the center of this 7-storey, underground well, around which the cars using the parking garage circulate. At the bottom of the well is a rotating mirror on an angle, which creates an optical illusion as reflects the walls of the well.

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