Žirmūnai's history has been traced to the late 14th century, when a Lithuanian fishing village was founded across the River Neris from Vilnius' Old Town. Several historic sites in Žirmūnai are internationally significant; it is the home of Lithuania's largest Jewish cemetery, as well as the location of mass graves of soldiers belonging to Napoleon's Grande Armée and victims of the NKGB's and MGB's executions after World War II. Tuskulėnai Manor, built in 1825, and the surrounding Peace Park are important historical and cultural attractions in Vilnius.