Programmers from ITMO University created a computer algorithm that guides tourists to places of interest that are most popular with locals based on their Instagram posts. To test the algorithm, the team analyzed Instagram photos taken in Saint Petersburg and compiled a list of museums, cafes, streets and event venues preferred by the residents of Russia’s northern capital, thus providing local suggestions to tourists. The results of the research were presented at the International Conference on Computational Science and published in Procedia Computer Science.