The Pont Neuf is a 16th-century bridge in Toulouse across the Garonne river. Original planning for the bridge started in 1542 by the assembly of a committee of master masons and carpenters. Construction started on the foundations in 1544; the first arch was started in 1614. The bridge was finished in 1632, and was inaugurated on 19 October 1659.
The bridge is not symmetrical; the longest arch is the third from the right-hand bank. The openings through the piers were originally supposed to represent the face and mane of a lion. A triumphal archway added in 1686 constricted traffic and was removed in 1860.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.