Vistula

The Vistula (/ˈvɪstjʊlə/; Polish: Wisła [ˈviswa]) is the longest and largest river in Poland, at 1,047 kilometres (651 miles) in length. The drainage basin area of the Vistula is 194,424 km² (75,068 sq mi), of which 168,699 km² (65,135 sq mi) lies within Poland (splitting the country in half). The remainder is in Belarus, Ukraine and Slovakia.

The Vistula rises at Barania Góra in the south of Poland, 1,220 meters (4,000 ft) above sea level in the Silesian Beskids (western part of Carpathian Mountains), where it begins with the White Little Vistula (Biała Wisełka) and the Black Little Vistula (Czarna Wisełka). It then continues to flow over the vast Polish plains, passing several large Polish cities along its way, including Kraków, Sandomierz, Warsaw, Płock, Włocławek, Toruń, Bydgoszcz, Świecie, Grudziądz, Tczew and Gdańsk. It empties into the Vistula Lagoon (Zalew Wiślany) or directly into the Gdańsk Bay of the Baltic Sea with a delta and several branches (Leniwka, Przekop, Śmiała Wisła, Martwa Wisła, Nogat and Szkarpawa).

Poland

Coordinates: 52°N 20°E / 52°N 20°E / 52; 20

Poland (Polish: Polska [ˈpɔlska]), officially the Republic of Poland (Polish: Rzeczpospolita Polska, listen ), is a country in Central Europe,bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine and Belarus to the east; and the Baltic Sea, Kaliningrad Oblast (a Russian exclave) and Lithuania to the north. The total area of Poland is 312,679 square kilometres (120,726 sq mi), making it the 71st largest country in the world and the 9th largest in Europe. With a population of over 38.5 million people, Poland is the 34th most populous country in the world, the 8th most populous country in Europe and the sixth most populous member of the European Union, as well as the most populous post-communist member of the European Union. Poland is a unitary state divided into 16 administrative subdivisions.

The establishment of a Polish state can be traced back to 966, when Mieszko I, ruler of a territory roughly coextensive with that of present-day Poland, converted to Christianity. The Kingdom of Poland was founded in 1025, and in 1569 it cemented a longstanding political association with the Grand Duchy of Lithuania by signing the Union of Lublin. This union formed the Polish–Lithuanian Commonwealth, one of the largest and most populous countries of 16th and 17th-century Europe. The Commonwealth ceased to exist in the years 1772–1795, when its territory was partitioned among Prussia, the Russian Empire, and Austria. Poland regained its independence (as the Second Polish Republic) at the end of World War I, in 1918.

Warsaw

Warsaw (Polish: Warszawa [varˈʂava]; see also other names) is the capital and largest city of Poland. It stands on the Vistula River in east-central Poland, roughly 260 kilometres (160 mi) from the Baltic Sea and 300 kilometres (190 mi) from the Carpathian Mountains. Its population is estimated at 1.740 million residents within a greater metropolitan area of 2.666 million residents, which makes Warsaw the 9th most-populous capital city in the European Union. The city limits cover 516.9 square kilometres (199.6 sq mi), while the metropolitan area covers 6,100.43 square kilometres (2,355.39 sq mi).

In 2012 the Economist Intelligence Unit ranked Warsaw as the 32nd most liveable city in the world. It was also ranked as one of the most liveable cities in Central Europe. Today Warsaw is considered an "Alpha–" global city, a major international tourist destination and a significant cultural, political and economic hub. Warsaw's economy, by a wide variety of industries, is characterised by FMCG manufacturing, metal processing, steel and electronic manufacturing and food processing. The city is a significant centre of research and development, BPO, ITO, as well as of the Polish media industry. The Warsaw Stock Exchange is one of the largest and most important in Central and Eastern Europe.Frontex, the European Union agency for external border security, has its headquarters in Warsaw. It has been said that Warsaw, together with Frankfurt, London, Paris and Barcelona is one of the cities with the highest number of skyscrapers in Europe. Warsaw has also been called "Eastern Europe’s chic cultural capital with thriving art and club scenes and serious restaurants".

River

A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as stream, creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague.

Rivers are part of the hydrological cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, and the release of stored water in natural ice and snowpacks (e.g. from glaciers). Potamology is the scientific study of rivers while limnology is the study of inland waters in general.

Wawel Castle

The Gothic Wawel Castle in Kraków in Poland was built at the behest of Casimir III the Great, who reigned from 1333 to 1370, and consists of a number of structures situated around the central courtyard.

In the 14th century it was rebuilt by Jogaila and Jadwiga of Poland. Their reign saw the addition of the tower called the Hen's Foot (Kurza Stopka) and the Danish Tower. The Jadwiga and Jogaila Chamber, in which the sword Szczerbiec, was used in coronation ceremonies, is exhibited today and is another remnant of this period. Other structures were developed on the hill during that time as well, in order to serve as quarters for the numerous clergy, royal clerks and craftsmen. Defensive walls and towers such as Jordanka, Lubranka, Sandomierska, Tęczyńska, Szlachecka, Złodziejska and Panieńska were erected in the same period.

The Wawel Royal Castle and the Wawel Hill constitute the most historically and culturally important site in Poland. For centuries the residence of the kings of Poland and the symbol of Polish statehood, the Castle is now one of the country’s premier art museums. Established in 1930, the museum encompasses ten curatorial departments responsible for collections of paintings, including an important collection of Italian Renaissance paintings, prints, sculpture, textiles, among them the Sigismund II Augustus tapestry collection, goldsmith’s work, arms and armor, ceramics, Meissen porcelain, and period furniture. The museum’s holdings in oriental art include the largest collection of Ottoman tents in Europe. With seven specialized conservation studios, the museum is also an important center for the conservation of works of art.