Reddit reviews Frommer's Athens and the Greek Islands (Complete Guide)

Awesome - I live in Amsterdam. There are lots of choices for a day trip, but Utrecht is one of my favorites. It's really easy to get to and (as you can see) beautiful. I wrote a blog post about my visit to Utrecht with the highlights and some recs -- the cathedral is great as are the two museums in town (musical clock museum and railway museum). And if you visit on a Saturday you can catch their flower market.

There's a bunch of other Netherlands content on my blog, too, so feel free to poke around or ask and I can point you in the right direction :)