To go down to the center, passing the garden on the right there is a door that connects you to the alley (same key to enter 6240), you can go out there and continue down the alley until you reach the parking lot, follow the street on the right and walk until you reach a ramp on the left, where you go up and then take a right downhill, continue down the street in the opposite direction of the cars and in 5 minutes you will be in the center.