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. *Topkapi Palace is closed every Tuesday. The Basilica Cistern will be visited instead of Topkapi Palace only on Tuesdays.

Hagia Sophia is a Late Antique place of worship in Istanbul, designed by the Greek geometers Isidore of Miletus and Anthemius of Tralles. 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 Latin 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. It's visited outside, if you would like to visit inside, please ask your guide to help to buy the tickets.

Sultan Ahmed Mosque also known as the Blue Mosque is an Ottoman-era historical imperial mosque located in Istanbul, Turkey. A functioning mosque 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.

Hippodrome of Constantinople is a square in Istanbul, Turkey. Previously, it was a circus that was the sporting and social center of Constantinople, the capital of the Byzantine Empire.

The Grand Bazaar in Istanbul is one of the largest and oldest covered markets in the world, with 61 covered streets and over 4,000 shops on a total area of 30,700 m2, attracting between 250,000 and 400,000 visitors daily. In 2014, it was listed No.1 among the world's most-visited tourist attractions with 91,250,000 annual visitors. The Grand Bazaar in Istanbul is often regarded as one of the first shopping malls in the world.

we will have time for lunch. lunch is excluded.