When I was there 3 years ago, there were "coffee shops" where it was quite legal to order your favourite blend from a menu and smoke it there. I don't think it's legal to walk around the street with it though.

I don't think anyone has mentioned the circle tram yet either. It will take you on a round trip of some of the points of interest in town. You can get off anywhere and get back on another one and continue your ride. This was the case 3 years ago anyway. I seem to remember it was number 20.

CatsPHiddle mentioned bikes too. I've never seen so many. An amazing sight for me near the railway station, was a parking station, the size of a multi-level carpark - for pushbikes.

And yes, the Van Gogh museum is a must.

Jenny