The Night Watch by Rembrandt is a spectacular painting. Until 1642 paintings of Civic Guards were static portraits. But Rembrandt created a dynamic picture of men going into action. This was never done before.
If you don't have time to spend a day in the Rijksmuseum or another museum, the Civic Guards Gallery (Schuttersgalerij) can be a good alternative.
In the Civic Guards Gallery you can see some of the most beautiful portrets of civic guards and of regents of the institutions from the 17th century.