During your travel in Kyrgyzstan you can enjoy staying in yurts, which is quite an authentic experience. Called bozüy in Kyrgyz (EN. grey house), it is the symbol of the Eurasian nomadic peoples. Even nowadays it is very commonly used in everyday life, especially by herdsmen who spend summer grazing cattle on high mountain pastures. Made of tree poles, felt and leather (no nails!), its size may vary from 50 heads upto 150 heads, which can be referred to as the ribs of the structure. Thanks to high thermal resistance of felt that covers the yurt one can easily survive both hot summer days and cold nights of high altitudes. The opening on top of the bozüy is called tündük, which serves as a window and ventilation channel. It is the central element of the flag of Kyrgyzstan and symbolizes unity and solidarity.