<prompt> Translate the following text to EnglishKatikati ya mraba kuna kituo cha wageni cha chini ya ardhi kinachoonyesha historia ya kuvutia ya mji kupitia uchimbuaji na paneli za kuonyesha.  <response>: In the middle of the square there is an underground Visitors Centre exhibiting a fascinating history of the town through excavations and lively display panels. 