Salve! (Greetings!) You have arrived at the Porta Capena, a gate in the Servian Wall. You may have come on the Via Appia from the Circus Maximus. Romans were on the road often, this one and the many others built to link the city to her empire. This route was used often to take wealthy Romans to their summer villas around the Bay of Naples.
Ite prudenter! (Go carefully!). One never knows when a nuntius (messenger) may be coming from behind in a celerrimum cisium (very fast light two-wheeled cart). Stay to the right. Noli ambulare in media via. (Don't walk in the middle of the road.)