Prague is Pretty
There aren't really any ugly places in Prague. If you like pretty locations, and romantic strolls, I can't think of a better place.
Insider Tip:Take a segway tour, and take it at the BEGINNING of your trip! That way you know the entire town, and can decide where you'd like to go again and hang out. My other tip is to stay in the Charles Bridge Economic Hotel. The location is unbelievable. And don't you dare take a taxi from the airport, unless you have allowed your hostel/hotel to pre-arrange it, because the cabbies will quadruple your price.