Ulug Beg, the grandson of van Timur defined the borders of the Shah-i-zinda complex vast by building a monumental Entrance Gate in 1434-35.[br]In the timurid tradition it's decorated with several geometric patterns.[br]The spandrel above the Gate has a pattern with 12- and 8-pointed stars, completed by irregular pentagons. This pattern is generated by dodecagons, octagons and ties.[br]In the picture below you can see that the stars are executed in multicoloured glazed tiles. The irregular pentagons aren't coloured en are decorated by carving.[br]Notice that lines run run straight on over the ties to create kites in them. THis is one of the two alternatives: [br][list][*]either you can draw lines from star to star not straight on[/*][*]either you don't draw lines in a polygon by connecting middles of edges but middles with different points.[/*][/list]