The capital city of Lithuania is Vilnius. It is not only the largest city in the country but also a cultural and economic hub. Vilnius is known for its beautiful baroque architecture, particularly in its Old Town, which is a UNESCO World Heritage site. The city offers a rich history, with influences from various cultures and eras, including the Grand Duchy of Lithuania and the Polish-Lithuanian Commonwealth. Visitors can explore numerous churches, museums, and parks, making it a vibrant destination for both tourists and locals.