This is the inner courtyard of the Collegium Maius in Kraków, Poland. It is located in the Old Town of Kraków near the city center. The Collegium is the oldest building of Jagiellonian University dating from the 14th century. One of the more famous students to have studied there is Nicolaus Copernicus. It looks like a quiet and contemplative space, doesn't it?
I've gotten these stamps before on postcards. The stamp on the left commemorates Sieradz Cathedral located in the city of the same name. I'm afraid I've not found any information on the second stamp, only that it is a manor house, Dwor w Janowcu Pulaw.
Postcrossing card #67