About Amsterdam

At the end of this month I'm going to Amsterdam with my girlfriend. for me and my girlfriend It will be our is the first time in Holland and we would like to get some tips. Since we are staying in Amsterdam for four days we would like to spend a day to go touring outside around Amsterdam for looking to see some typical villages and windmills, but we don't have any  idea where to we can go...
Instead with regard to Amsterdam city, a part the famous attractions, museum, coffee shops and so on, is there some of particular to visit or to do? Are there any places you can recommend?
Thanks in advance for yours tips.
Cheers guys!

At the end of the month, I'm going to Amsterdam with my girlfriend for four days. It will be our first time in Holland and we’d like to get some tips. We know that we’d like to take a day trip to the countryside to visit some of the windmills and walk around the typical Dutch villages, but we’re not sure where to go. In regards to the city center of Amsterdam, what are the top places to see, and things to do, like museums, coffee shops or other famous attractions?
Thanks in advance for your tips.
Cheers guys!