Lithuania is a country and the southernmost of Europe’s Baltic States, a former Soviet bloc nation bordering Poland, Latvia and Belarus. Its capital, Vilnius, near the Belarus border, is known for its medieval Old Town. It also has Gothic, Renaissance and baroque architecture, and 18th-century cathedral built on a pagan temple site. Hilltop Gediminas' Tower, a symbol of the city and the nation, offers sweeping views. For centuries, the southeastern shores of the Baltic Sea were inhabited by various Baltic tribes. In the 1230s, the Lithuanian lands were united by Mindaugas, the King of Lithuania, and the first unified Lithuanian state, the Kingdom of Lithuania, was created on 6 July 1253. During the 14th century, the Grand Duchy of Lithuania was the largest country in Europe; present-day Lithuania, Belarus, Ukraine, and parts of Poland and Russia were the territories of the Grand Duchy. Lithuania's climate, which ranges between maritime and continental, is relatively mild. Average temperatures on the coast are −2.5 °C (27.5 °F) in January and 16 °C (61 °F) in July. In Vilnius the average temperatures are −6 °C (21 °F) in January and 17 °C (63 °F) in July. Lithuania is the only Baltic country with more than eight hundred years of statehood tradition and its name was first mentioned one thousand years ago, in 1009. Wedged at the dividing line of Western and Eastern civilizations, Lithuania battled dramatically for its independence and survival. Once in the Middle Ages (15th century), Lithuania was the largest state in the entire continent of Europe, where crafts and overseas trade prospered.