TheRoman Colosseum is the largest and most famous amphitheater in the ancient world. It is located in the city of Rome, capital of Italy, and attracts thousands of travelers from all over the world every year. It was built by the emperors of the Flavian dynasty between the years 70 and 80 AD. to host gladiator shows, animal combats, battle reenactments, and other public amusements. It could accommodate around 65,000 spectators, who accessed its stands through 80 entrance arches. The Colosseum has an elliptical shape, with a length of 188 meters, a width of 156 meters and a height of 48 meters. It is made up of four levels of arcades, decorated with different architectural orders: Doric, Ionic, Corinthian and Composite. The interior of the Colosseum was divided into three parts: the arena, where the shows took place; the podium, where the authorities and the most important personalities sat; and the cavea, where the rest of the public was distributed according to their social rank. The Colosseum was a masterpiece of engineering, which had a system of underground galleries, called hypogeums, where the gladiators, animals and stages were housed. It also had a complex lifting mechanism, which allowed the protagonists of the shows to appear and disappear. In addition, the Colosseum was equipped with a fabric awning, called a velarium, which extended over the cavea to protect the public from the sun and rain. The Colosseum was used as an entertainment venue for more than four centuries, until 523 AD, when the last games were held. Later, it underwent several transformations and deteriorations, due to earthquakes, fires, looting and abandonment. In the Middle Ages, it became a fortress, a quarry, a seat of religious orders and a refuge for the poor. In the Renaissance, its historical and artistic value was recognized, and the first restoration interventions began. In the 18th century, Pope Benedict XIV declared it a sanctuary for Christian martyrs, who had been persecuted and executed in the Colosseum during the Roman Empire. Since then, the Colosseum has become a symbol of ancient Rome and the Catholic Church, and one of the most visited tourist attractions in the world. In 1980, it was declared a World Heritage Site by UNESCO, and in 2007, it was chosen as one of the seven wonders of the modern world. Obviously it is an essential visit if you travel to Rome, especially if you are passionate about history. .