You don't realise how big this bridge is till you've actually seen it! The setting is spectacular. The bridge spans majestically across the deep blue waters that flow between the Black Sea and the Sea of Marmara. The valley either side is populated with lovely looking villas with slanting red roofs. Traffic can be quite congested, especially during peak hours. There were vendors standing literally in the middle of the roadway on either sides selling bottles of water. A bit harrowing if you are accustomed to more regulated traffic conditions. Do allow plenty of extra time if you are aiming to get to a meeting, like I was that day. They are building the 3rd Bosphorus bridge now which is a hybrid long span structure and will hopefully help in easing the traffic situation. A must see if you are a long span bridge enthusiast. I found it utterly spectacular!