It was then that Leray saw the sights of Leningrad for the first time, including the Hermitage, Peterhof, and on meeting Olga realized that they had been researching the same topics.
Ito ay pagkatapos na Leray nakita ang tanawin ng Leningrad sa unang pagkakataon, kasama na ang Hermitage, Peterhof, at sa pagkikita Olga na maisasakatuparan na sila had been pananaliksik ang parehong paksa.