New Delhi, June 8 -- Pope Leo XIV challenged Europe to acknowledge Christianity's contributions to its cultural identity Sunday, as he presided over a Mass in Madrid attended by more than a million people and honored Spain's centuries-old traditions of religious devotion and culture.

Leo celebrated Spain's Christian roots and culture with the huge morning Mass in downtown Madrid and an evening spectacle that featured flamenco dancers, classical guitar and a moving meditation by Spanish actor Antonio Banderas on art, faith and beauty.

In his remarks, Leo challenged Europe to consider what the continent's identity would be without the influence of Christianity. He cited its art, culture and the role played by Christians - "motivated by th...