![File:The iron chain prevents the fleet of Thomas from entering the Golden Horn.jpg - Wikimedia Commons File:The iron chain prevents the fleet of Thomas from entering the Golden Horn.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/The_iron_chain_prevents_the_fleet_of_Thomas_from_entering_the_Golden_Horn.jpg/1200px-The_iron_chain_prevents_the_fleet_of_Thomas_from_entering_the_Golden_Horn.jpg)
File:The iron chain prevents the fleet of Thomas from entering the Golden Horn.jpg - Wikimedia Commons
![Remains of the great chain that protected the Golden Horn and Constantinople on display at the Military Museum Istanbul Stock Photo - Alamy Remains of the great chain that protected the Golden Horn and Constantinople on display at the Military Museum Istanbul Stock Photo - Alamy](https://c8.alamy.com/comp/EPY987/remains-of-the-great-chain-that-protected-the-golden-horn-and-constantinople-EPY987.jpg)
Remains of the great chain that protected the Golden Horn and Constantinople on display at the Military Museum Istanbul Stock Photo - Alamy
WORLD MILITARY HISTORY | **THE GREAT CHAIN OF CONSTANTINOPLE'S HARBOR: MARVEL OF MEDIEVAL ENGINEERING**
![The actual chain used by the Eastern Roman Empire in 1452 to block Ottoman access to the Golden Horn during the fall of Constantinople : r/europe The actual chain used by the Eastern Roman Empire in 1452 to block Ottoman access to the Golden Horn during the fall of Constantinople : r/europe](https://i.redd.it/q83dpzxtmrt21.jpg)