ðə juːnˈaɪɾᵻd kˈɪŋdəm, ˈɪɾəli, spˈeɪn, ænd ðə juːnˈaɪɾᵻd stˈeɪts ɑːɹ ðə kˈʌntɹiz wɪððə lˈɑːɹdʒɪst nˈʌmbɚɹ ʌv sˈɪɾiz wɪð sˈɪɾi sˈaɪtsiːɪŋ sˈɜːvɪs.
The United Kingdom, Italy, Spain, and the United States are the countries with the largest number of cities with City Sightseeing service.