However,construction of the present buildings began in ***.It took three years to ***.Th potala is thirteen storeys tall and has more than 1000 ***.In the Potala,there are many ancient sculptures,paintings and historical items from the Tibetan ***.To help preserve the buildings,only a few people are admitted each ***.You may visit the Potala Palace from 9 a.m_ to 12 noon and from 3 p.m_ to 5 p.m_ .