The Grand Bazaar in Istanbul is one of the largest and oldest covered markets in the world, with 61 covered streets and over 3,000 shops which attract between 250,000 and 400,000 visitors dailyIn 2014, it is listed No.1 among world's most-visited tourist attractions with 91,250,000 annual visitors.

Hagia Sophia is a former Christian patriarchal basilica (church), later an imperial mosque, and now a museum (Ayasofya Müzesi) in Istanbul, Turkey. From the date of its construction in 537 until 1453, it served as an Orthodox cathedral and seat of the Patriarch of Constantinople, except between 1204 and 1261, when it was converted to a Roman Catholic cathedral under the Latin Empire. The building was a mosque from 29 May 1453 until 1931. It was then secularized and opened as a museum on 1 February 1935

Built by Genoese in 1348, Galata Tower (Galata Kulesi) or Christea Turris (Tower of Christ) is one of the spots that you will be fascinated by the beauty and charm of Istanbul. The nine-story tower is 66.90 meters and it was the tallest building in the city when built.

The Topkapı Palace or the Seragliois a large palace in Istanbul, Turkey, that was one of the major residences of the Ottoman sultans for almost 400 years (1465–1856) of their 624-year reign.

As well as a royal residence, the palace was a setting for state occasions and royal entertainments. It is now a museum and as such a major tourist attraction. It also contains important holy relics of the Muslim world, including Muhammed's cloak and sword. The Topkapı Palace is among the monuments contained within the "Historic Areas of Istanbul", which became a UNESCO World Heritage Site in 1985, and is described under UNESCO's criterion iv as "the best example[s] of ensembles of palacesof the Ottoman period.

The Sultan Ahmed Mosque or Sultan Ahmet Mosque (Turkish: Sultan Ahmet Camii) is a historic mosque in Istanbul. The mosque is popularly known as the Blue Mosque for the blue tiles adorning the walls of its interior.

It was built from 1609 to 1616, during the rule of Ahmed I. Its Külliye contains a tomb of the founder, a madrasah and a hospice. The Sultan Ahmed Mosque is still popularly used as a mosque.