Covering some 25 hectares immediately northeast of Old Town, Kalnų Parkas is a popular retreat for walks, and, during the summer, concerts on its Soviet-era outdoor stage. Also home to the Hill of Three Crosses, the area the park now occupies is shrouded in a number of contentious mysteries. The so-called Gedimino Kapo Kalnas (Gediminas Grave Hill) for example is supposedly the site where the founder of the Grand Duchy of Lithuania, Grand Duke Gediminas is buried. No such evidence exists to support the claim however.