Visitors will recognise this building from the 100 Litas banknote; the university of Vilnius (16C) is a labyrinth of courtyards and passages, composed of numerous buildings and bustling with around 25 000 students, the doctors, lawyers and philosophers of tomorrow. In addition to merely strolling around, visitors can also see the richly endowed library. In the great courtyard stands the church of St John, while the observatory courtyard is a haven of peace and tranquillity.