The Historic Areas of Istanbul are a group of sites in the capital district of Fatih in the city of Istanbul, Turkey. These areas were added to the UNESCO World Heritage List in 1985. This World Heritage Site includes buildings and structures such as the Sarayburnu, the Topkapı Palace, the Hagia Sophia, the Sultan Ahmed Mosque, the Hagia Irene, Zeyrek Mosque, Süleymaniye Mosque, Little Hagia Sophia and the Walls of Constantinople.

Zones

The World Heritage site covers four zones, illustrating the major phases of the city's history using its most prestigious monuments:

Pollution

Air pollution in Turkey, such as fine dust from traffic, is a serious problem in Istanbul. Although the historic peninsula was partially pedestrianised in the early 21st century, a 2015 study found that this is the part of the city which would benefit most from a low emission zone. However, as of 2022, it was still said to be "car-oriented".

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