Warsaw
Gothic architecture is represented in the majestic churches but also at the burgher houses and fortifications. The most significant buildings are St. John's Cathedral (14th century), a typical example of the so-called Masovian Gothic style; St. Mary's Church (1411), a town house of Burbach family (14th century); Gunpowder Tower (after 1379); and the Royal Castle "Curia Maior" (1407–1410). The most notable examples of Renaissance architecture in the city are the house of the Baryczko merchant family (1562), a building called "The Negro" (early 17th century), and Salwator tenement (1632). The most interesting examples of Mannerist architecture are the Royal Castle (1596–1619) and the Jesuit Church (1609–1626) at Old Town. Among the first structures of the early Baroque, the most important are St. Hyacinth's Church (1603–1639) and Sigismund's Column (1644).
Gothic architecture
The pointed arch, one of the defining attributes of Gothic, was earlier incorporated into Islamic architecture following the Islamic conquests of Roman Syria and the Sassanid Empire in the 7th century. The pointed arch and its precursors had been employed in Late Roman and Sassanian architecture; within the Roman context, evidenced in early church building in Syria and occasional secular structures, like the Roman Karamagara Bridge; in Sassanid architecture, in the parabolic and pointed arches employed in palace and sacred construction. Use of the pointed arch seems to have taken off dramatically after its incorporation into Islamic architecture. It begins to appear throughout the Islamic world in close succession after its adoption in the late Umayyad or early Abbasid period. Some examples are the Al-Ukhaidir Palace (775 AD), the Abbasid reconstruction of the Al-Aqsa mosque in 780 AD, the Ramlah Cisterns (789 AD), the Great Mosque of Samarra (851 AD), and the Mosque of Ibn Tulun (879 AD) in Cairo. It also appears in one of the early reconstructions of the Great Mosque of Kairouan in Tunisia, and the Mosque–Cathedral of Córdoba in 987 AD. David Talbot Rice points out that, "The pointed arch had already been used in Syria, but in the mosque of Ibn Tulun we have one of the earliest examples of its use on an extensive scale, some centuries before it was exploited in the West by the Gothic architects."