In ancient times, when the city of Rome was at the height of its power and splendor, it was the custom, as it is in fact now with the inhabitants of wealthy capitals, for the principal families to possess, in addition to their city residences, rural villas for summer retreats, which they built in picturesque situations, at a little distance from the city, sometimes in the interior of the country, and sometimes upon the sea-shore. There were many attractive places of resort of this nature in the neighborhood of Rome. Among them was Antium.