The MAS, or Museum aan de Stroom, in Antwerp, Belgium, is a prominent museum showcasing the city's history, port, and its relationship with the world. The museum's architecture is noteworthy, featuring a unique stacked design that provides panoramic views of Antwerp from its rooftop promenade, accessible to all visitors free of charge. The museum is generally considered accessible, with elevators and ramps available. You can explore the museum solo or take a guided tour for a more in-depth understanding of the exhibits. There are no significant seasonal restrictions, though it is recommended to check opening hours in advance, particularly around holidays. The cost of entry to the museum's exhibitions is moderate, and a typical visit lasts between 2 to 4 hours, depending on your level of interest.