Kursunlugerme Bridge (IMAGE) Johannes Gutenberg Universitaet Mainz Caption The two-story Kur?unlugerme Bridge, part of the aqueduct system of Constantinople: Two water channels passed over this bridge - one above the other. Credit photo/©: Jim Crow Usage Restrictions This image may only be used in connection with the press release "The Aqueduct of Constantinople: Managing the longest water channel of the ancient world", issued by Johannes Gutenberg University Mainz on May 11, 2021. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.