Blue domes are a popular theme with all the medressas and Mosques of ancient Uzbekistan. The Bibi-Kanum Mosque is an example of that, one of the oldest and at one stage (if my guidebook is to be believed) the largest in the Islamic world (we are talking a few centuries back now).
One story I have read and heard. When a Soviet archologist in 1941 open Timur's tomb and found his remains he found an inscription. "Whom so ever opens this tomb will be defeated by an enemy far greater than me'. The next day Hitler invaded the Soviet Union.
Well, it's an interesting tale, isn't it?
Next time I hope to write a little about Uzbekistan as a place, an entity.