Are both the Valens Aqueduct and Veliefendi Race Course considered to be important landmarks in Istanbul, Turkey?
Valens Aqueduct The Valens Aqueduct (Turkish: "Valens Su Kemeri" or Turkish: "Bozdoğan Kemeri" , meaning "Aqueduct of the Grey Falcon"; Ancient Greek: Ἀγωγὸς τοῦ ὕδατος , "Agōgós tou hýdatos", meaning simply "aqueduct") is a Roman aqueduct which was the major water-providing system of the Eastern Roman capital of Constantinople (modern Istanbul, Turkey). Completed by Roman Emperor Valens in the late 4th century AD, it was maintained and used by the Byzantines and later the Ottomans, and remains one of the most important landmarks of the city.
Great Istanbul Tunnel The Great Istanbul Tunnel (Turkish: "Büyük İstanbul Tüneli" ) is a proposed multi-use highway and railway undersea tunnel in Istanbul, Turkey to cross the Bosphorus strait. The project's completion is expected in 2020.