The Forum Appii (or Appii Forum) is an ancient post station on the Via Appia, 69 km (43 miles) southeast of Rome, founded, no doubt, by the original constructor of the road. Horace mentions it as the usual halt at the end of the first day's journey from Rome, and describes it as full of boatmen and cheating innkeepers. Boatmen were found there because it was the starting-point of a canal which ran parallel to the road through the Pontine Marshes, and was used instead of it at the time of Strabo and Horace (see Appian way). The Appii Forum and the "Three Taverns" are mentioned also as a halting place in the account of Paul's journey to Rome (Acts xxviii. 15).

[Wikipedia]