Royal Spur Tower (Torre de l'Esperó Reial) is a majestic 16th-century historical monument that is an integral part of the ancient defensive fortifications of the city of Alghero. Located in the picturesque country of Italy, on the island of Sardinia, this massive round tower once served as a reliable shield for the city from the sea.

Today, the tower, also known as Torre di Sulis, is considered one of the main architectural landmarks of Piazza Sulis. It is connected to powerful bastions and fortress walls, creating a unique look for the old center where Italian and Catalan cultural traditions intertwine. Its impressive size and characteristic round shape make it a recognizable symbol of past maritime power.
This location attracts travelers not only for its historical significance but also for its magnificent setting. The promenade at the foot of the tower offers breathtaking views of the coastline and the endless Mediterranean Sea, making it a popular spot for strolls and discovering the fortification art of the Renaissance era.