Considering how immensely popular bicycles are in Amsterdam, it's only natural that the first 'bicycle flat' - parking garage for bikes - would be built here. It was originally built as a temporary solution because of a nearby reconstruction, where all the regular bike stands had to be removed. This temporary solution turned out to be very popular, and the Bicycle Flat stands to this day.
Wikipedia (Dutch) http://nl.wikipedia.org/wiki/Fietsflat
More information http://www.iamsterdam.com/en/see-and-do/things-to-do/attractions-and-sights/places-of-interest/bicycle-flat
Address Stationsplein, 1012 AB Amsterdam, Netherlands
Coordinates 52°22'45.293" N 4°53'48.991" E