St. Basil's Cathedral was built to commemorate the capture of the Tatar stronghold of Kazan in 1552, which occured on the Feast of the Intercession of the Virgin. It is named after St. Basil the Blessed. Basil impressed Ivan in 1547 when he foretold a fire that swept through Moscow that year. Upon his death, Basil was buried in the Trinity Cathedral that stood on this site at the time. The cathedral was constructed from 1555 to 1560. In 1588, Tsar Fyodor Ivanovich added a ninth chapel added on the eastern side to house the grave of St. Basil.
St. Basil"s Cathedral consists of nine chapels built on a single foundation. The riot of color and shapes that is St. Basil"s Cathedral is unmatched anywhere else in the world. The powerfully eastern design of St. Basil"s reflects both its location between Europe and Asia and its historical origins. Since the Kazan Qolsharif mosque had been the principal symbol of the Khanate captured by Ivan the Terrible, some elements from the mosque were incorporated into the cathedral to symbolize the victory.
Although the towers and domes appear chaotic, there is symmetry and symbolism in its design. There are eight domed chapels symbolizing the eight assaults on Kazan: four large and octagonal and four small and square. In the center is a tent-roofed spire topped with a small golden dome. The ninth chapel on the east side added in 1588 for Basil"s tomb interrupts the symmetery of design somewhat. It can be recognized on the outside by its green-and-gold dome studded with with golden pyramids.
The interior is a maze of galleries winding from chapel to chapel and level to level via narrow stairways and low arches. The walls are painted in floral and geometric patterns.
St. Basil the Blessed can be visited in his chapel on the lower floor, where he lies in a silver casket in gaudy splendor. Upstairs, the Chapel of the Intercession contains the equally splendid blue and gold iconostasis. Other chapels, such as that of St. Nicholas, are more restrained and even austere in their decor.
Château de Niort is a medieval castle in the French town of Niort. It consists of two square towers, linked by a 15th-century building and dominates the Sèvre Niortaise valley.
The two donjons are the only remaining part of the castle. The castle was started by Henry II Plantagenet in the 12th century and completed by Richard the Lionheart. It was defended by a rectangular curtain wall and was damaged during the Wars of Religion. In the 18th century, the castle served as a prison.
The present keeps were the central point of a massive fortress. The southern keep is 28m tall, reinforced with turrets. The northern tower is slightly shorter at 23m. Both are flanked with circular turrets at the corners as well as semicircular buttresses. Each of the towers has a spiral staircase serving the upper floors. The Romanesque architecture is of a high quality with the dressed stones closely jointed.