This Sunday morning, during which many stores close in Amsterdam, we recommend visiting one of the museums. The most famous of them are the Van Gogh (with works of this artist) and the Rijksmuseum (with works of various artists including Rembrandt). Take 2-3 hours walking around each one, as such it's perhaps better to choose only one of the two. The choice will depend on your preferences, the Rijksmuseum is perhaps more complete, but the Van Gogh is without a doubt more curious.