In a significant gesture of interfaith respect, Pope Leo XIV visited the iconic Blue Mosque in Istanbul, Turkey, on November 29, 2025. As a symbol of his reverence, the Pope removed his shoes before entering the mosque, a customary practice in many religious sites. However, the Pope did not engage in prayer during his visit, which has sparked discussions about the nature of his engagement with a place of worship that is predominantly associated with Islam.
The Blue Mosque, officially named the Sultanahmet Mosque, is a testament to the Ottoman Empire's architectural grandeur. It is adorned with thousands of blue ceramic tiles, earning its popular name. The Pope's visit to this historic site was part of his four-day trip to Turkey, which also included a visit to Lebanon. This trip marked a significant moment as it was his first overseas journey as the leader of the Catholic Church.
During his visit, Pope Leo was guided by the mosque's imam and the mufti of Istanbul through the expansive complex, which can accommodate up to 10,000 worshippers. The Pope's demeanor was lighthearted, as he smiled and joked with one of his guides, the mosque's lead muezzin, during the 20-minute visit. However, the Pope's decision not to pray at the Blue Mosque has raised questions about the boundaries of religious practice and the potential for interfaith dialogue.
The Pope's visit to Turkey was also a symbolic gesture to commemorate the 1,700th anniversary of the Council of Nicaea, an early Church council that produced the Nicene Creed, a foundational document in Christian theology. At a ceremony held on Friday, Pope Leo condemned violence in the name of religion and urged Christians to overcome centuries of division. This message of unity and peace was a central theme of his visit to Turkey and Lebanon.
Despite the Pope's respectful and peaceful approach, the decision not to visit the Hagia Sophia, a former cathedral turned mosque, has been a subject of discussion. The Hagia Sophia, a UNESCO World Heritage Site, was converted back into a mosque by President Tayyip Erdogan in 2020, sparking controversy and concern among some religious leaders. The Vatican's silence on this matter has further fueled the debate, leaving many to ponder the implications of such decisions in the realm of religious diplomacy.