Lithuania, officially the Republic of Lithuania, is a country in Northern Europe. One of the three Baltic states, it is situated along the southeastern shore of the Baltic Sea, to the east of Sweden and Denmark. The official language, Lithuanian, along with Latvian, is one of only two living languages in the Baltic branch of the Indo-European language family. 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.