Eric F.
Yelp
Antwerp is a wonderful Flemish city, but not nearly as dynamic or large as Brussels. That said there are a few important and interesting places to see: and one of the best is the home of Rubens, the great Flemish painter.
This is not a palace in any way. The Flemish of the Renaissance were a discrete and well mannered group, wealthy, sophisticated, and relatively humble compared to the French, the Spanish, the Ottomans, and the Italians of the same era. They traded out of the port at Brugges, devoted themselves to their work and families, and were instrumental in facilitating the rise of the European upper middle class. Ruben's House is an excellent example of these Flemish values.
The Rubens house is beautifully restored, both the interiors and the gardens. It is filled with Ruben's furniture, his workshop, and all of the things that constituted his families daily life. Of course it is filled with a great art collections as well... but for me, the most impressive thing was the leather wall coverings. It got cold in the winter, so people who could afford it covered all of their walls in leather. In the case of Ruben's, the leather is pressed, and etched, and embossed with designs. It is quite impressive.
Give yourself two hours here and then break for lunch. It may not be worth the trip from a far off city to see. But if you are nearby, Antwerp and the Rubenshuis will not disappoint.