10 most difficult Sweden riddles

In 1902, on the private initiative of historian Mathias Weibull, the Skåne flag was reconstructed, or rather created from scratch, adapting it to the Nordic flagship tradition. There is a golden cross on the red material sheet. The flag directly refers to the medieval history of the region, which then belonged to the Kingdom of Denmark. Since 1658, it has been part of Sweden, but despite the passage of several centuries, it retained its cultural identity.

A number of rivers from both countries flow into the gulf. As a result, a salinity gradient exists from north to south. In the south the water is the normal brackish water of the Baltic Sea, but in the north, the salinity is so low, that one can no longer taste the salt in the water and many freshwater fish thrive in it.

Vasa was built between 1626-1628 to fight against Poland and Lithuania. She was designed to become the greatest vessel of Swedish fleet. Richly decorated and well equipped with cannons was to pay high price for Gustav Adolph ambition. The ship was unstable, and she foundered on her maiden voyage after mere 1,200 yards. The loss was so big, that Swedes believed, it had been caused by Polish sabotage.

Ytterby mine, located in the south-east part of the Swedish island and the town Resarö, was a rich source of many rare minerals. 4 chemical elements - yttrium, ytterbium, terbium and erbium - were named after the mine commemorating their origin.

Örebro is a city in central Sweden. The natural center of the City is otherwise the magnificent Örebro Castle, situated on an islet in the Svartån.This castle was constructed during the stewardship of Birger Jarl during the early 13th century and then modified and enlarged during the reign of King Gustav Vasa in the 1560s.

The fika means "coffee break", often with pastries, although coffee can be substituted with tea or even juice. In Sweden, the tradition of fika ('fee-ka') is as common as breakfast; something almost everyone does at least once a day. It factors into planning, work schedules, and even a relaxed weekend at home. Life without fika is unthinkable.

With a surface area of 5,655 km2, Vänern is also the largest lake in the European Union and the third-largest lake entirely in Europe after Ladoga and Onega in Russia.

During its life the Nobel established a lot of companies which turned into corporations and still are playing the major part in the global economy, for example Imperial Chemical Industries (ICI). In his last will he set aside the bulk of his estate to establish the Nobel Prizes, to be awarded annually in the fields of physics, chemistry and physiology or medicine. Prizes are also awarded for literature and peace.

Before the 18th century, it was thought in Sweden that sea levels were falling. On the initiative of Anders Celsius a number of marks were made in rock on different locations along the Swedish coast. In 1765 it was possible to conclude that it was not a lowering of sea levels but an uneven rise of land, later recognized as post-glacial rebound.

The four largest cities in Sweden are Stockholm (1.4 million), Gothenburg (560,000), Malmö (280,000) and Uppsala (140,000).