Visit the fascinating exhibition about The Amsterdam Ordnance Datum and experience the centuries long struggle of the Dutch against the water.

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During the night of Thursday 6th december 2013 the sea level rose to 3,99 meters (about 13,09 feet) above NAP. That was the highest level that had been measured there since the 1953 disaster, when the water reached a level of 4,55 meters (14,93 feet) above NAP, the dykes breached in many places and more than 1800 people drowned.