Begova dzamijaBey's Mosque : build in the 16th century, this is on eof the biggest mosques in the Balkans, as well as the main mosque for Sarajevo's Muslims. The mosque was build by the bey Husref - a rich Turkish, Bosnian aristocrat, who also build the high school for Muslim preachers next to the mosque. Next to the Bey's mosque there is a clock tower from the same century. It is part of an Islamic temple even though mosques usually don't have clock towers. It is also the first mosque in the world using electrical power which is in use since the beginning of the 20th century, till the recent days.