Sarajevo has hosted travellers for centuries, because it was an important trading center during the Ottoman and Austro-Hungarian empires and because it was a natural stop for many routes between East and West. Examples of popular destinations in Sarajevo include the Vrelo Bosne park, the Sarajevo cathedral, and the Gazi Husrev-beg Mosque. Tourism in Sarajevo is chiefly focused on historical, religious, cultural sites and winter sports.