I will let the pictures speak for themselves...
Mala Strana Square
Old Town Bridge Tower
View from Charles Bridge.
The plaque on the statue of John of Nepomuk. Rubbing the plague is supposed to bring good luck and ensure your return to Prague.
Waterwheel under the Charles Bridge
St. Vitus Cathedral within Prague Castle.
Interior of Church of St. James
Powder gate and Municipal house.
Old Town Square
By David Cerny - Kun (Horse), inside Lucerna Palace shopping arcade.
By David Cerny - Proudy (Stream), in the courtyard of Hergetova Cihelna, Mala Strana. Two computer-controlled guys pissing in a pool which outline is the map of Czech Republic. Apparently, they are spelling out famous quotations from Czech literature with their pee.
Akce cihla or Buy-a-Brick Action. It is a fund-raising project of a civic organization, Portus Praha to help people with mental handicaps.