The article discusses a series of paintings, on a vision of a modern city, inspired by the author’s recent visit to Siena, Italy. It describes an importance of architectural visions and its complementary role in relation to an architectural practice. The article presents the author’s experiences with the process of painting. It highlights the role of a quick sketch in the process of selecting and analysing a subject. Finally, it showsthe unique importance of traditional painting techniques in a realization of the subject, impossible to be replaced by a digital visualization.