The photo can be used for commercial purposes.
This is the 42 MPx photo of St. Vitus Cathedral in Prague. It is the part of the large complex of Prague castle. The cathedral was built for almost 600 years and it is the most important and the biggest temple in the city. It is the seat of Archbishop, moreover, it used to be a place for coronations of Czech kings and queens, religious services and also burial of many patrons and archbishops.
The whole complex of Prague castle is the seat of Czech president and government. With Charles bridge it is the most famous tourist attraction in Prague. It is completely free of charge to see this spot.