fourteen friars. Seven of them were beheaded on the Bleak Hill; the other seven were crucified and thrown into the Neris or Vilnia River. Verkiai Calvary (or Vilnius Calvary) is the second oldest calvary in Lithuania after Žemaičių Kalvarija. It is located in Verkiai, a neighborhood of Vilnius. The Calvary was built in 1662–69 as a sign of gratitude for the victory in the Second Northern War (1655–60). The consecration ceremony of the new Stations of the Cross took place at Pentecost on 9 June 1669. The Calvary includes 20 brick chapels, seven wooden and one brick gate, and one bridge with a wooden chapel. The path ends at the Church of the Discovery of the Holy Cross. In 1962 all chapels, except four closest to the church, were destroyed by the Soviet authorities with dynamites overnight. The Calvary was reconstructed in 1990–2002 and the chapels were solemnly consecrated at Pentecost in 2002. Pilgrimages in the Calvary are organized regularly with the clergy. Church Heritage Museum () exhibits the oldest and largest of all the churches of the Grand Duchy of Lithuania treasure trove of the Vilnius Cathedral and liturgical artefacts from other churches of the Roman Catholic Archdiocese of Vilnius. Vilnius is the only city in the Baltic states with an Apostolic Nunciature, in which Pope John Paul II and Pope Francis stayed during their visits to Lithuania, Latvia and Estonia. Parks, squares and cemeteries Almost half of Vilnius is covered by green areas, such as parks, public gardens, natural reserves. Additionally, Vilnius is host to numerous lakes, where residents and visitors swim and have barbecues in the summer. Thirty lakes and 16 rivers cover 2.1% of Vilnius's area, with some of them having sand beaches. Vingis Park, the city's largest, hosted several major rallies during Lithuania's drive towards independence in the 1980s. Sections of the annual Vilnius Marathon pass along the public walkways on the banks of the Neris River. The green area next to the White Bridge is another popular area to enjoy good weather, and has become venue for several music and large screen events. Cathedral Square in Old Town is surrounded by a number of the city's most historically significant sites. Lukiškės Square is the largest, bordered by several governmental buildings: the Lithuanian Ministry of Foreign Affairs, the Ministry of Finance, the Polish Embassy, and the Genocide Victims' Museum, where the KGB tortured and murdered