It is often called the "Seljuk Baroque portal." From here it emerged again in Italy, and later grew in popularity among the Turks during the Ottoman era. Various visitors and envoys were sent to European cities, especially to Paris, to experience the contemporary European customs and life. The decorative elements of the European Baroque and Rococo influenced even the religious Ottoman architecture. On the other hand, Mellin, a French architect, was invited by a sister of Sultan Selim III to Istanbul and depicted the Bosporus shores and the seaside waterfront mansions called yalı. During a thirty-year period known as the Tulip period, all eyes were turned to the West, and instead of monumental and classical works, villas and pavilions were built around Istanbul. However, it was about this time when the construction on the Ishak Pasha Palace (1685–1784) in Eastern Anatolia was going on. Beginning with this period, the upper class and the elites in the Ottoman Empire started to use the open and public areas frequently. The traditional, introverted manner of the society began to change. Fountains and waterside residences such as the Aynalıkavak Kasrı became popular. A water canal (other name is Cetvel-i Sim) and a picnic area (Kağıthane) were established as recreational areas. Although the Tulip period ended with the Patrona Halil uprising, it became a model for attitudes of Westernization. During the years 1720–1890, Ottoman architecture deviated from the principles of classical times. With Ahmed III's deposition, Mahmud I took the throne (1730–1754). It was during this period that Baroque-style mosques were starting to be constructed. Circular, wavy and curved lines are predominant in the structures of this period. Major examples are the Nur-u Osmaniye Mosque, Zeynep Sultan Mosque, Laleli Mosque, Fatih Tomb, Laleli Çukurçeşme Inn, Birgi Çakırağa Mansion, Aynalıkavak Palace, and the Selimiye Barracks. Mimar Tahir (also known as Mehmed Tahir Ağa) was the important architect of this period. Nusretiye Mosque, Ortaköy Mosque, Sultan Mahmud's Tomb, Galata Lodge of the Mevlevi Dervishes, Dolmabahçe Palace, Beylerbeyi Palace, Sadullah Pasha Yalı and the Kuleli Barracks are the important examples of this style, developed parallel with the Westernization process.