What are Euclid and Descartes doing in a building that at one time belonged to the Gosplan? What does M+P+ mean, and how do you get an internship at Google? In the latest edition of Open House, Valentin Biryukov, a second-year student in the Applied Mathematics and Informatics programme, and Maria Gordenko, a fourth-year student in the Computer Engineering programme, talk about these questions and more.