Located on the northwestern part of Romania, Oradea is the main gateway to Western Europa. Oradea's architecture is a mix between Communist-era buildings, and beautiful Baroque buildings, remnants from the era when the city was part of Austria-Hungary. The Fortress of Oradea, dating back from the 12th century, is one of the most impressive sights of the town. Other sights are: the Baroque Palace of Oradea, a wonderful Baroque museum with 365 famous windows, the biggest Baroque cathedral in Romania, the State Theatre, plans for which were designed by two Austrian architects who had built around 100 theatres and opera houses in Europe. The Felix Baths health spas, located just outside the city are also worth visiting.