<prompt> Translate the following text to EnglishSehemu ya kusisimua zaidi ya mji huo, iliyo katika mkono wa kusini wa transept, ni saa ya karne ya 19 ya nyota na takwimu zake za mitambo ambazo huonekana na kengele saa 12:30 jioni.  <response>: The great popular attraction, situated in the southern arm of the transept, approached through the Portail de lHorloge, is the 19th-century astronomical clock with its elaborate mechanical figures that appear with chimes at 12:30pm. 