The Museum aan de Stroom (MAS; Dutch for: Museum at the river) is a museum located along the river
Scheldt in the Eilandje district of Antwerp, Belgium.
It opened in May 2011 and is the largest museum in Antwerp.
The 60 metre high MAS was designed by Neutelings Riedijk Architects. The façade is made of Indian
red sandstone and curved glass panel construction.
The MAS houses 470,000 objects, most of which are kept in storage.