Prague is the capital of the Czech Republic and maybe it’s a good thing for Czech as it is also the most beautiful city of the country.
The country’s government invested a lot of money in this city, more than in others to keep its status as one of the most beautiful cities in the world.
The are a lot of nice buildings in the Old Town (Stare Mesto) and in the Lesser Town (Mala Strana), its in those areas of the city you find the most famous buildings and monuments that Prague has to offer.
The Vysehrad fortress with the Basilica of St Peter and St Paul, The Karluv Bridge (most) with its entrance towers that connects the Stare Mesto with the Mala Strana, the Wenceslas square, The Tyn Cathedral, etc…
I stayed in Prague for about 4 days on my first trip with school in 1999 and 3 days on my second visit in 2007 (pictures are from 2007)