The UN's World Heritage Committee has placed two major historical sites in Ukraine on its list of such sites that it considers to be in danger. The iconic Saint Sophia Cathedral in the capital, Kyiv, and the medieval center of the western city of Lviv, are UNESCO World Heritage Sites central to Ukraine's culture and history. The decision announced on Friday to put those two on the body's list of sites “in danger” has no enforcement mechanism, but could help deter Russian attacks. Neither site has been directly targeted since Russia invaded Ukraine in February 2022, and Lviv has largely been spared from the fighting. But Russia has unleashed waves of strikes on Kyiv and other cities, hitting residential areas and critical infrastructure with Iranian-made attack drones. The decision was taken at the 45th session of the World Heritage Committee, which is being held in Saudi Arabia. The committee maintains UNESCO's World Heritage List and oversees conservation of the sites. The gold-domed Saint Sophia Cathedral, located in the heart of Kyiv, was built in the 11th century and designed to rival the Hagia Sophia in Istanbul. The monument to Byzantine art contains the biggest collection of mosaics and frescoes from that period, and is surrounded by monastic buildings dating back to the 17th century. The Kyiv-Pechersk Lavra, also known as the Monastery of the Caves, is a sprawling complex of monasteries and churches — some underground — that were built from the 11th to the 19th century. Some of the churches are connected by a labyrinthine complex of caves spanning more than 600 meters (2,000 feet). The two sites on the Dnipro River, a 15-minute drive from one another, are “a masterpiece of human creative genius," according to Unesco, the UN Educational, Scientific and Cultural Organization. The other site is the historic center of Lviv, near the Polish border. A 5th-century castle overlooks streets and squares built between the 13th and 17th centuries. The site includes a synagogue as well as Orthodox, Armenian and Catholic religious buildings, reflecting the city's diversity. “In its urban fabric and its architecture, Lviv is an outstanding example of the fusion of the architectural and artistic traditions of Eastern Europe with those of Italy and Germany,” Unesco said. “The political and commercial role of Lviv attracted to it a number of ethnic groups with different cultural and religious traditions.” Lviv is more than 500km from Kyiv and even further from any front lines, but it has not been spared. Russian cruise missiles slammed into an apartment block in the city in July, killing at least six people and wounding dozens. Unesco added Ukraine's Black Sea port city of Odesa to its list of endangered heritage sites in January. Russian forces have launched multiple artillery attacks and airstrikes on the city, a cultural hub known for its 19th-century architecture. Russia says it only strikes military targets. Under the 1972 Unesco convention, ratified by both Ukraine and Russia, signatories undertake to “assist in the protection of the listed sites” and are “obliged to refrain from taking any deliberate measures” that might damage World Heritage sites. Inclusion on the List of World Heritage in Danger is meant to rally urgent international support for conservation efforts. The list includes more than 50 sites around the world. Read More Ukraine-Russia war – live: ‘Significant losses’ for Putin’s forces as Kyiv retakes village and attacks ships Ukraine recaptures another village from Putin’s forces – as it keeps up attacks on Russia’s ships Putin meets the leader of Belarus, who suggests joining Russia's move to boost ties with North Korea Ukraine war’s heaviest fight rages in east - follow live Charity boss speaks out over ‘traumatic’ encounter with royal aide