Hagia Sophia, also known as Ayasofya in Turkish, is one of Istanbul’s most iconic and historic monuments. Originally built as a Christian basilica in the 6th century, it was later converted into a mosque and is currently a museum open to the public.The architecture of Hagia Sophia is stunning, with its large central dome supported by mighty pillars and arches. It is considered a masterpiece of Byzantine architecture and has influenced numerous religious buildings over the centuries. Its exterior facade features decorative details and majestic minarets.Inside, Hagia Sophia offers a unique combination of Christian and Muslim elements. You can admire beautiful Byzantine mosaics and frescoes depicting biblical scenes and religious figures. Some of these mosaics were covered or removed during the transformation into a mosque, but some have been restored and are still visible.The great dome is one of the most impressive features of Hagia Sophia. Its imposing structure and skillful use of light create a majestic and spiritual atmosphere inside the building.In 2020, Hagia Sophia was reopened as a mosque, sparking a debate on a global scale about its purpose and its historical and cultural significance. It is advisable to check opening hours and access rules, as they may vary depending on circumstances.Hagia Sophia is more than just a historic building. It is a symbol of Istanbul, an icon of world architecture and a testament to centuries of history and culture. Its majesty and historical importance make it a must-visit for anyone in Istanbul.