The Golden Horn is where located by the Bosphorus has always been a problem, both in the Roman and Ottoman periods.
Emperor Justinian attempted to build a bridge over the Golden Horn. The bridge was built but did not survive for so long. After the conquest of Constantinapolis, sultan Mehmed constructed a bridge in the 15th century while it was demolished. Sultan Bayezid asked for a Project from Leonardo da Vinci.
He planned the bridge 240 meters in length and 40 meters wide. But the Project has never been finished. It would have been the longest and the largest bridge ever for that time. Until the 19th century, no one attempted to plan a Project. Sultan Abdulmejid constructed the first modern bridge in 1845.
Since then, the Galata Bridge has been fixed, and it links the old city and the new town. There are many seafood restaurants under the bridge. And people are fishing non-stop on the bridge.
You can book Istanbul Tour with Romos Travel.