Set in a notable square with bars & eateries, this ancient roman arch is said to have been built in 33 BC during Emperor Augusto's reign.
Various meanings have been attributed to the origins of the name 'Riccardo'. Some of them are related to legendary events taking place in Trieste like the passage of Charlemagne or Richard the Lionheart into this city.
More reliable sources suggest instead a derivation from the latin term 'Cardo', which was the name of one of the two main axes around which Roman towns were built.