It is not an exaggeration to say that famous buildings are concentrated and beautiful city streets can be condensed here. Cafe, meal and shopping are almost done here as well. The boulevard is a souvenir shop street and it is also a pity to walk by looking at souvenirs. There are many people from Saturday and Sunday afternoon to night, so many pickpockets and guests also want to take pictures, so it is recommended that people who want to take pictures aim at the morning with less traffic. Buildings can be put in tour etc, but it is not so terrible as to say, so it will suffice to just look at the exterior. Between buildings is closer than you see on the map and it's narrow, so half a day is enough to turn around. I do not believe that there is a more magical square in the world than this leaves you breathless and wherever you turn, you are fascinated and enchanted by its majesty and its beauty, unforgettable.
Prague, and certainly the old center is definitely worth it, a lot of grandeur, at times cozy but too crowded, I was there in early May so certainly not in the high season and it was absurdly busy, there is one excursion group after the other who constantly get in the way. Imagine, someone holding up an umbrella (the guide), and in his or her wake I estimate an average of 60 people, I have seen one group from Japan that exceeded the hundred people. A large part of the tourists then gather around the clock at the astronomical clock in which environment no longer comes through. Take a look around the streets that are slightly further away, especially towards the river. you will find the better shops, nice bars and restaurants, restaurants where you can eat very well for reasonable prices, at least much better and more favorable than the restaurants which are really right in the center near the tourist attractions.