Turnov : Czech Republic

Turnov is a town in the Czech Republic, in northern Bohemia, Liberec Region, on the Jizera river, in the heart of nature-reserve Bohemian Paradise (Český ráj). It has 16,000 inhabitants. Traditional center of gemstone polishing.
The city was founded in the middle of the 13th century, soon attracting craftsmen, who produced jewelry out of locally available Bohemian garnet. Monuments of historical significance include a Renaissance city hall from 1526 and three churches from the 14th – 19th centuries as well as significant collections of gemstones, jewelry, geology, archaeology and folklore in The Museum of Bohemian Paradise. In a suburb, lies the Hrubý Rohozec castle, built in 1250 and later reconstructed into an Empire-style chateau.
Turnov is surrounded by many historical and natural monuments in Bohemian Paradise, such as castle ruins Trosky, castle Hrubá Skála, spa Sedmihorky and many forests with rock formations and hiking paths, making it a popular base for tourism.