Dolmabahçe Palace located in the Beşiktaş district of Istanbul, Turkey, on the European coast of the Bosporus strait, served as the main administrative center of the Ottoman Empire from 1856 to 1887 and from 1909 to 1922.
The Galata Tower or with the current official name Galata Kulesi Museum is a tower in the Beyoğlu district of Istanbul, Turkey. Its namesake is the quarter where it's located, Galata. Built as a watchtower as a part of the Walls of Galata, the tower is currently being used as an exhibition place and a museum.
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.
Hagia Sophia, officially known as the Hagia Sophia Grand Mosque and formerly as the Church of Holy Wisdom, is a Late Antique place of worship in Istanbul, designed by the Greek geometers Isidore of Miletus and Anthemius of Tralles.
The Blue Mosque in Istanbul, also known by its official name, the Sultan Ahmed Mosque, is an Ottoman-era historical imperial 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.
The Topkapı Palace, or the Seraglio, 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.