The Torre of Lapela is a ruined medieval castle located next to the Minho River in the town of Lapela, in Monção municipality.
One tower is all that remains of the Castle of Lapela, which was situated a few kilometers downstream from the Castle of Monção, which defended the ford of the Minho. The historians attribute its foundation to Lourenço Gonçalves de Abreu, lord of Merufe, Sanfins, Lapela, Barbeita, Regalados, and other lands of the Alto Minho. It is thought that because he had fought in the Battle of Valdevez next to King Afonso I and his father, Gonçalo Martins Abreu, Afonso I had the castle built and appointed him its first commander.
Constructed of stone ashlar, the square tower measures 10 meters on a side and 35 meters high. Its walls are three meters thick. It has a single entrance on the north facade about 6 meters above the ground, surmounted with the coat of arms of the Kingdom of Portugal.
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.