Hagia Sophia in Istanbul, constructed 532-537, continues to be revered as one of the most important structures in the world. Hagia Sophia (Greek Ἁγία Σοφία, for 'Holy Wisdom') was designed to be the major basilica of the Byzantine Empire and held the record for the largest dome in the world until the Duomo was built in Florence in the 15th century. Additionally, Hagia Sophia became more important with time as subsequent architects became inspired by the dome when building later churches and mosques.
This is a companion discussion topic for the original content at https://www.worldhistory.org/Hagia_Sophia/.