The Burcht van Leiden is an old shell keep in Leiden constructed in the 11th century. It is located at the spot where two tributaries of the Rhine come together, the Leidse Rijn, and another river, now a canal. The structure is on top of a motte, and is today a public park.
From humble beginnings, the hill was raised during various periods of history up to 9 meters above the surrounding landscape in the 11th century. Ada van Holland used the keep as a residence until her father died in 1203 and she was captured by her uncle. In the same year the previous stone building was rebuilt after an attack on the castle, with tuff stone, and after Ada's removal, in 1204 it was attacked again and rebuilt with brick.
Later in the 13th century the building was considered antiquated, since more and more townspeople and houses were built around the base of the hill, making defenses impossible without destroying most of the city. The old 'interior keep' that had been built against the interior walls (a similar ronded keep construction can still be seen in Teylingen) was slowly dismantled and reused for city construction.
As the city of Leiden grew around it in the 13th and 14th centuries, the ruined castle lost its military function. The location became a romantic patriotic symbol after the Siege of Leiden in 1574. In 1651 the city bought the premises to make it into a water tower for public use. A system of waterpipes leading to squares in the city is still intact. In this period a new portal on the keep wall was designed in 1662 with heraldric symbols by Rombout Verhulst, denoting the leading families of the city. There are two other gates to the Burcht, one at the base of the hill with wrought iron heraldric weapons, built in 1653, and one on the south side of the complex, which itself forms a gateway to the park.References:
The Cloth Hall in Kraków dates to the Renaissance and is one of the city's most recognizable icons. It is the central feature of the main market square in the Kraków Old Town (listed as a UNESCO World Heritage Site since 1978).
The hall was once a major centre of international trade. Traveling merchants met there to discuss business and to barter. During its golden age in the 15th century, the hall was the source of a variety of exotic imports from the east – spices, silk, leather and wax – while Kraków itself exported textiles, lead, and salt from the Wieliczka Salt Mine.
Kraków was Poland's capital city and was among the largest cities in Europe already from before the time of the Renaissance. However, its decline started with the move of the capital to Warsaw in the very end of the 16th century. The city's decline was hastened by wars and politics leading to the Partitions of Poland at the end of the 18th century. By the time of the architectural restoration proposed for the cloth hall in 1870 under Austrian rule, much of the historic city center was decrepit. A change in political and economic fortunes for the Kingdom of Galicia and Lodomeria ushered in a revival due to newly established Legislative Assembly or Sejm of the Land. The successful renovation of the Cloth Hall, based on design by Tomasz Pryliński and supervised by Mayor Mikołaj Zyblikiewicz, Sejm Marshal, was one of the most notable achievements of this period.
The hall has hosted many distinguished guests over the centuries and is still used to entertain monarchs and dignitaries, such as Charles, Prince of Wales and Emperor Akihito of Japan, who was welcomed here in 2002. In the past, balls were held here, most notably after Prince Józef Poniatowski had briefly liberated the city from the Austrians in 1809. Aside from its history and cultural value, the hall still is still used as a center of commerce.
On the upper floor of the hall is the Sukiennice Museum division of the National Museum, Kraków. It holds the largest permanent exhibit of the 19th-century Polish painting and sculpture, in four grand exhibition halls arranged by historical period and the theme extending into an entire artistic epoch. The museum was upgraded in 2010 with new technical equipment, storerooms, service spaces as well as improved thematic layout for the display.
The Gallery of 19th-Century Polish Art was a major cultural venue from the moment it opened on October 7, 1879. It features late Baroque, Rococo, and Classicist 18th-century portraits and battle scenes by Polish and foreign pre-Romantics.