The palace, built by Sultan Abdülâziz, was designed by the palace architect Nigoğayos Balyan and constructed by his sons Sarkis and Hagop Balyan between 1863 and 1867, during a period in which all Ottoman sultans built their own palaces rather than using those of their ancestors; Çırağan Palace is the last example of this tradition. The inner walls and the roof were made of wood, the outer walls of colorful marble. A beautiful marble bridge connects the palace to the Yıldız Palace on the hill behind. A very high garden wall protects the palace from the outer world.
The Topkapı Palace is a large palace in Istanbul, Turkey, that was the primary residence of the Ottoman sultans for approximately 400 years (1465–1856). Topkapı Palace was constructed between 1460 and 1478 by Sultan Mehmed the Conqueror.