<prompt> Translate the following text to EnglishJengo la zamani zaidi katika Hifadhi ya Ashtown ni Ashtown Castle, makazi ya zamani ya papa ambayo imerekebishwa ili kuhifadhi Kituo cha Wageni cha Hifadhi ya Phoenix kufunguliwa 9:30 AM na 6:30 PM; watu wazima IR2; watoto IR1; upendeleo; upatikanaji wa walemavu, ambayo inatoa video na maonyesho bora ya ghorofa mbili juu ya historia na wanyama wa pori.  <response>: The oldest building in the park is Ashtown Castle, a former papal residence which has been renovated to house the splendid Phoenix Park Visitor Centre open 9:30am 6:30pm; adults IRa2, children IRa1; concessions; disabled access, which presents a video and an excellent two-floor exhibition on the history and wildlife of the park. 