Budapest later, with the help of the Russian Empire. 1867 was the year of Reconciliation that brought about the birth of Austria-Hungary. This made Budapest the twin capital of a dual monarchy. It was this compromise which opened the second great phase of development in the history of Budapest, lasting until World War I. In 1849 the Chain Bridge linking Buda with Pest was opened as the first permanent bridge across the Danube and in 1873 Buda and Pest were officially merged with the third part, Óbuda (Old Buda), thus creating the new metropolis of Budapest. The dynamic Pest grew into
Budapest history of Buda, but Budapest is still rich in renaissance and neo-renaissance buildings, like the famous Hungarian State Opera House, the St. Stephen's Basilica and the Hungarian Academy of Sciences. During the Turkish occupation (1541–1686), Islamic culture flourished in Budapest, multiple mosques and baths were built in the city. These were great examples of Ottoman architecture, which was influenced by Muslims from around the world not limited to Turkish, Iranian, Arabian and to a larger extent, Byzantine architecture as well as Islamic traditions. After Holy Army conquered Budapest they turned most of the mosques with Churches, Minarets were turned into