Officially the Hagia Sophia Grand Mosque and formerly the Church of Hagia Sophia, is a Late Antique place of worship in Istanbul. Built in 537 as the patriarchal cathedral of the imperial capital of Constantinople, it was the largest Christian church of the eastern Roman Empire (the Byzantine Empire) and the Eastern Orthodox Church, except during the Latin Empire from 1204 to 1261, when it became the city's Roman Catholic cathedral. In 1453, after the Fall of Constantinople to the Ottoman Empire, it was converted into a mosque. In 1935 the secular Turkish Republic established it as a museum. In 2020, it re-opened as a mosque

Sultan Ahmed Mosque, also known as the Blue Mosque, is an Ottoman-era mosque located in Istanbul, Turkey. A functioning mosque, it also attracts large numbers of tourist visitors. It was constructed between 1609 and 1616 during the rule of Ahmed I. Its Külliye contains Ahmed's tomb, a madrasah and a hospice. Hand-painted blue tiles adorn the mosque’s interior walls, and at night the mosque is bathed in blue as lights frame the mosque’s five main domes, six minarets, and eight secondary domes. It sits next to the Hagia Sophia, the principal mosque of Istanbul until the Blue Mosque's construction and another popular tourist site.

The Hippodrome of Constantinople was a circus that was the sporting and social center of Constantinople, capital of the Byzantine Empire. Today it is a square named Sultanahmet Meydanı (Sultan Ahmet Square) in the Turkish city of Istanbul, with a few fragments of the original structure surviving. Horse racing and chariot racing were popular pastimes in the ancient world and hippodromes were common features of Greek cities in the Hellenistic, Roman and Byzantine eras.

The Topkapı Palace is a large museum in the east of the Fatih district of Istanbul in Turkey. In the 15th and 16th centuries, it served as the main residence and administrative headquarters of the Ottoman sultans.

On tuesdays only, as Topkapi Palace museum is closed on tuesdays and we will visit Underground cistern instead of Topkapi Palace on tuesdays. The Basilica Cistern, is the largest of several hundred ancient cisterns that lie beneath the city of Istanbul, Turkey. The cistern, located 150 metres

One of the oldest structures inside the Topkapı Palace, dating back to Byzantine Empire era of the Istanbul/Constantinopolis.