Cesky Krumlov
This is one of those charming little European towns that you have to be grateful are so well preserved and maintained. My wife and I spent two days here and spent hours just walking around. We probably saw the castle from every possible angle. The town has several wonderful viewpoints over the river and castle, and lots of nice restaurants and souvenir shops. You can walk along the river in places and you can just roam the streets and soak up the delightful atmosphere. Most of the tourists we saw were shooting photos nonstop. It's just that picturesque!