We'll also visit the historical remains of Largo Argentina and the cat sanctuaries, the open air market at Campo dei' Fiori (once the piazza for public executions) and the Pantheon in Piazza della Rotunda. The Pantheon is known by many as the biggest architectual feat of all time. And don't forget Piazza di Sapagn with the Spanish Steps and the Barcaccia Fountain.Twins Romulus and Remus, who were sons of the god of war Mars and were brought up by a she-wolf, was in a challenge as to who would build and regulate an empire. After killing his twin brother Remus, Romulus started to determine and build Rome. But of course, opposite to the mythical belief, Etruscan Kings ruled Rome up to 512 BC. Then it was made into a republic. With the history of glorious emperors, Julius Caesar, Trajan, Hadrian and the remarkable Nero, the glorious history of Rome lives above history books. With its power and powerful armies, Rome was one of the greatest empires of all time. The greatest poets, historians and philosophers are born in this country, further declaring its hold and contribution to the world.