Le Destroit is a ruined medieval fortified road station, built by the Templars of the Crusader Kingdom of Jerusalem in the early 12th century, located on the Mediterranean shore near a site where they later built the Chateau Pelerin castle, today close to the modern town of Atlit, Israel.
The coastal road near Atlit ran through a narrow passage in the rock, making it an ideal location for robbers to ambush pilgrims and other travelers. In 1103, Baldwin I of Jerusalem was wounded by robbers in the area. The tower fortress, which was situated on a ridge above the pass on the east side of the peninsula at Atlit, was built to protect these travelers.
The army led by King Richard I of England camped at the fortress following the recapture of Acre in 1191. However, when the larger Castrum Perigrinorum was completed in 1218, Le Destroit was dismantled by the Crusaders so that it couldn't be used by the Muslim enemy as a staging ground for an attack on the main castle. Denys Pringle indicates 1220 as the year Destroit was destroyed.
Today the podium-shaped tower base with rock-cut cisterns, the rock-cut yard containing the stables, as well as the moat can still be seen. The remains are cut into the living rock,[6] an aeolian quartz sandstone known in the region as kurkar.
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.