There’s so much to see and do in Prague, you should plan on at least three to four days to cover the main sites and perhaps explore some of the lesser know attractions.
As the center of art and culture in Bohemia for hundreds of years, Prague is bursting at the seams with wonderful places to explore. The first place people head to is Old Town, with it’s huge square surrounded by colorfully painted buildings. This is the center of the tourist district and pedestrian malls radiate in several directions from the square enticing you to stroll and shop.

The Rough Guide Prague
Prague: A Traveler’s Literary Companion
Lonely Planet Prague
Prague (Eyewitness Travel Guides)