Sakarya Viaduct
The Sakarya Viaduct is a long railway bridge carrying the Ankara-Istanbul high-speed railway across the Sakarya River and its adjacent plain approximately west of Polatlı , Turkey . 
<triplet> Sakarya Viaduct <subj> Sakarya River <obj> crosses <triplet> Ankara-Istanbul high-speed railway <subj> Turkey <obj> country <triplet> Polatlı <subj> Turkey <obj> country