De Rotterdam is a unique multifunctional building on the shores of the river Maas on the Wilhelminapier in Rotterdam designed by Office for Metropolitan Architecture (OMA) of Rem Koolhaas. Its remarkable mix of functions makes this building a true vertical city. By following the construction for 4 years (January 2010 – end of 2013), Ruud Sies presents a photographic report on a very special project in the development of Rotterdam, one that also forms a link to the Wilhelminapier as a historic spot. The full report can be viewed here. More images after the break.