Amsterdam is very...hmmm...diverse! It's a beautiful city, with canals everywhere, picturesque buildings and a really good vibe. Then of course there's the famous Red Light District. It's quite a place, and even though it's not a place that you'd want to take a piglet, it's not nearly as seedy as you'd think.
Anne Frank's house is well worth a visit - although it sure was hot in there! A canal cruise is a great way to see some of the major landmarks and to learn a bit of local history as well.
My only regret is that we didn't get to see any windmills!!