If it wasn't allready existing, den Haag should be founded just for Danny to guide you through it.
While gaining informations on common stuff like founding of the city and its history there was much more to know. For example the specialities of certain embassies were not the only things which are not easy to be found in Wikipedia for example.
In addition, the end of the tour was at a beautiful backyard of a destillery, which we then afterwards could enjoy one hour before it closed. A blessing for our health :D .
Because he knew we were not in a rush he generously prolonged the Tour by one hour.
All in all we think that everybody should book him to explore some secrets of this beautiful city, gain a broad understanding of its history and perhaps make him able to write a whole book of secrets of den Haag. We for sure would buy it. For us and as a present for all family members.