ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen alongside the Rumelian Fortress in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )
ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )
ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen alongside the Rumelian Fortress in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )
ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen alongside the Rumelian Fortress in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )
ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen alongside the Rumelian Fortress in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )
ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen alongside the Fatih Sultan Mehmet Bridge in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )
ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )
ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )
ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen alongside the Bebek Bay in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )
ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen alongside the July 15 Martyrs' Bridge in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )
ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen alongside the Ortakoy Mosque and July 15 Martyrs' Bridge in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )
ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen alongside the Ortakoy Mosque and July 15 Martyrs' Bridge in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )
ISTANBUL, TURKEY - APRIL 09: An aerial view of the Bosphorus as its color turns to turquois due to the influence of northeast wind is seen alongside the Ortakoy Mosque and July 15 Martyrs' Bridge in Istanbul, Turkey on April 09, 2020. ( Muhammed Enes Yıldırım - Anadolu Agency )