Ulan Ude is the capital city of the Republic of Buryatia, Russia, located about 100 kilometers southeast of Lake Baikal. With a population of over 400,000 inhabitants, it is the third-largest city in Eastern Siberia. The city is notable for its unique blend of Russian and Buryat cultures, which is reflected in its architecture, cuisine, and cultural institutions. Landmarks include the Odigitrievsky Cathedral and the Ivolginsky Datsan, the center of Buddhism in Russia. Ulan Ude is set against a backdrop of rolling steppe and distant mountains, offering visitors a mix of natural beauty and urban amenities. The city was founded in 1666 by Russian Cossacks, and its history is closely linked to the Trans-Siberian Railway, which contributed to its growth and prosperity. Due to its proximity to Lake Baikal, it has become a starting point for many tourists wishing to explore the lake and its surroundings.