Amsterdam, the Netherlands - April 20, 2011: Woman looking for her bicycle at a free (and secured) bicycle parking in Amsterdam, adjacent to Amsterdam Centraal railway station (westside). The building is the worldAAAAAs first bicycle \'flat\' (three floors) and has room for 2500 bicycles. It is 100 meters long and 14 meters wide. It is open 24 hours a day. Many people travelling by train in the Netherlands cycle to the train station. Most bicycles parked in this facility belong to commuters.