- Although currently a restaurant, this monumental building has served many purposes throughout its life. It started its life as a gate into the Medival city. Its best-known role is as a former weighing house ("Waag" means scale), the taxing point for those wishing to trade goods in the city. Among other roles, it has also played host to the city's many professional guilds, including the doctor's guild. As a result, Rembrandt's famous painting, the Anatomy Lesson of Dr. Tulp, was painted here.