Between 354 CE and 361 CE a huge triumphal monument was erected next to the camp and city. Contemporary reports suggest that Emperor Constantius II had it built to commemorate his victories. When the remains of Carnuntum disappeared after the Migration Period the monument remained as an isolated building in a natural landscape and led Medieval people to believe it was the tomb of a pagan giant. Hence, they called it “Heidentor” (pagan gate).
Built in the 18th century, this neo-classical monument marked the start of the road from Berline to Brandenburg an der Havel. The design was based off of the Propylaea, the gate way to the Acropolis in Athens. The monument is 26m high, and 65m wide. Reliefs and Sculptures on the gate depict the tales of Hercules.
The gate has five passages between its doric columns. The central passage, which is the widest, was reserved for royals. The adjacent passages were used by aristocrats. Ordinary citizens were only allowed to use the outer two passages.
It was originally built at the end of the 1st century BC to record the renewed alliance between Emperor Augustus and Marcus Julius Cottius, a celto-ligurian ruler, made king and Roman prefect of the Cottian Alps.
The arch has a unique arcade, in which the archivolt is supported by pilasters. The entablature rests on four Corinthian columns placed at the extremities of each corner, such that a quarter of each drum is embedded in the monument. The lowest architrave is composed of three bands of which the lowest band is thicker than the middle band, and this in turn is thicker than the top band. Above the architrave, a frieze composed of a bass relief stretches around all four sides. Above that is the cornice which has twenty-two corbels on each face and twelve on each side of the arch. The corbels’ panels are decorated with roses. On tob of that rests the attic, which displays an inscription on both faces.
it was the principle gate of Colonia Julia Fanestris, a colonia established in the town of Fanum Fortunae (temple of Fortuna) by the Roman architect Vitruvius at the command of the Emperor Augustus, in commemoration of the victory over the Carthaginian general Hasdrubal Barca in the Battle of Metauro during the Second Punic War.
Constructed at the point at which the via Flaminia met the decumanus maximus of the city, the monument is dated to 9 CE by means of an inscription located on the frieze, with large characters carved in the rock which were once gilded in bronze. The inscription reports:
IMP. CESAR DIVI F. AVGVSTVS PONTIFEX MAXIMVS COS. XIII TRIBVNICIA POTESTATE XXXII IMP. XXVI PATER PATRIAE MURVM DEDIT
Imperator Caesar Augustus son of a god, Pontifex Maximus, Consul 13 times, recipient of tribunician power 32 times, acclaimed imperator 26 times, father of his country donated this wall.
Faced with opus quadratum from blocks of Istrian stone, the monument consists of two minor lateral arches and a larger central arch: the keystone of the latter is decorated with an image of an animal which is no longer recognisable but which most probably depicted an elephant. The main body, still well preserved, supported a large attic which is now lost, with a Corinthian pseudo-portico, in which there were seven arched windows separated by eight pseudo-columns.
he Arch of Augustus was the triumphal arch of Augustus, located in the Roman Forum. It spanned the road between the Temple of Castor and Pollux and the Temple of Caesar, near the Temple of Vesta. It commemorated the return of the Parthian standards and replaced the earlier Arch of Octavian built on the same spot in 29 BC, to commemorate the Battle of Actium (31 BC) against Mark Antony and Cleopatra.
Porta Gemina or Twin gates were built in the end of the 2nd century on the remains on older Roman gates, and their main role was to serve as an entrance to the ancient theater. The construction is very simple but harmonious, not over-sized, and with two arch passes decorated with three half-pillars, which have composite capitals on top.
The whole construction is connected with relief corona which decorates the gates. Above the arches there is a slot for the portcullis which closed the door.