I didn't have very long in Amsterdam, but I was there recently and two things struck me as I stepped out from Central Train Station:
1. People are very tall.
2. There are more bicycles than I thought existed in the entire world -- and I'm just talking about the ones parked outside the train station.
I hope to return to Amsterdam one day for a longer stay with more time to look around. I don't know if I'd have the nerve to get on a bicycle in that city though. I don't know how you folks who live there get around without crashing into each other.
Oh wait, there's a #3: The public urinals!!! Haha, that was hilarious.
But seriously, great city. I have to get back there.