Once you are in Czech Republic, you should not miss sights.There are many interesting sights. Prague has many beautiful churches. For example, Cathedral of St. Vít, which stay on Prague castle courtyard or Basilica of St. Jiří. Prague has also very nice centr. There are many historical houses, bridges, like Charles Bridge, and many other beautiful buildings.
After you have seen all sights you should explore Prague’s nightlife. If you’re looking for some classical entertainment, I suggest visiting some of the Prague’s theatres. The most popular theatre is the National Theatre. Than if you still have some energy to waste, Prague offers many clubs and bars all over the city center. Some of the most famous clubs are Duplex at Wenceslas square, Roxy at Dlouhá and many others.