During the Neolithic Age, a group of people moved to the Valley of Madriu (the present-day Natural Park located in Escaldes-Engordany declared UNESCO World Heritage Site) as a permanent camp in 6640 BCE.
dˈʊɹɹɪŋ ðə nˌiːoʊlˈɪθɪk ˈeɪdʒ, ɐ ɡɹˈuːp ʌv pˈiːpəl mˈuːvd tə ðə vˈæli ʌv mˈædɹɪˌuː ðə pɹˈɛzəntdˈeɪ nˈætʃɚɹəl pˈɑːɹk loʊkˈeɪɾᵻd ɪn ˈɛskældəzɛŋɡˈoːɹdəni dᵻklˈɛɹd ʌnˈɛskoʊ wˈɜːld hˈɛɹɪɾɪdʒ sˈaɪt æz ɐ pˈɜːmənənt kˈæmp ɪn sˈɪks θˈaʊzənd sˈɪkshˈʌndɹɪd fˈoːɹɾi bˌiːsˌiːˈiː.