This capital and largest city of Bosnia and Herzegovina is located on the territory of the Sarajevo Field, surrounded by the mountains of Bjelasnica, Igman, and Trebevi-. After World War II, a massive expansion of Sarajevo culminated with the hosting of the 1984 Winter Olympics. Sarajevo is one of only a few major European cities which have a mosque, Catholic church, Orthodox church and synagogue in the same neighborhood. Due to its rich history of religious and cultural diversity, Sarajevo is sometimes called the Jerusalem of Europe or Jerusalem of the Balkans. Throughout the city, you will be able to see the influence of both Western and Eastern empires. Among many important and interesting landmarks of the city, a few stand out, such as the Vrelo Bosne park, the Sarajevo cathedral, and the Gazi Husrev-beg's Mosque. One of the best places to see the whole city and its surrounding environment is from the observation deck on, 178 meter high, Avaz Twist Tower.