The Circus Maximus was a chariot racetrack in Rome first constructed in the 6th century BCE. The Circus was also used for other public events such as the Roman Games and gladiator fights and was last used for chariot races in the 6th century CE. It was partially excavated in the 20th century and then remodelled but it continues today as one of the modern city's most important public spaces, hosting huge crowds at music concerts and rallies.
The Circus Maximus, located in the valley between the Palatine and Aventine hills, is the oldest and largest public space in Rome. Its principal function was as a chariot racetrack and host of the Roman Games (Ludi Romani) which honoured Jupiter. These were the oldest games in the city and were held every September with 15 days of chariot races and military processions. In addition, Rome had many other games and up to 20 of these had one day or more at the Circus Maximus. Other events hosted at the site included wild animal hunts, public executions and gladiator fights, some of which were exotically spectacular in the extreme, such as when Pompey organised a contest between a group of barbarian gladiators and 20 elephants.
At its largest during the 1st century CE following its rebuilding after the fire of 64 CE, the Circus had a capacity for 250,000 spectators seated on banks 30 m wide and 28 m high. Seats were in concrete and stone in the lower two tiers and wood for the rest. The seats at the closed curved end date from the early 1st century CE. The outside of the circus presented an impressive front of arcades in which shops would have served the needs of the spectators. The Roman architectural historian Vitruvius also describes a temple of Ceres in the Circus and that it was decorated with terracotta statues or gilt bronze.
The track, originally covered in sand, measured 540 x 80 m and had 12 starting gates for chariots arranged in an arc at the open end of the track. A decorated barrier ran down the centre of the track so that chariots ran in a circuit around conical turning posts placed at each end. The spina also had two obelisks added over the centuries, one in the centre and one at the end. Here also were the lap markers - eggs and dolphins - which were turned to mark the completion of each of the seven circuits of a typical race.
The last official chariot race at the Circus Maximus was in 549 CE and was held by Totila, the Ostrogoth king. The site was then largely abandoned, although, the Frangipanni did fortify the site in 1144. The first excavations were carried out under Pope Sixtus V in 1587 and the two obelisks which had originally stood as part of the spina were recovered.
The site was used for industry and even a gasworks in the 19th centur but in the 1930s the area was cleared and converted into a park made to resemble the original form of the Circus. Original seats were revealed, as were the starting gates and the spina. However, the latter two were re-covered and now lie some 9 m under the present ground level. The curved seat end continues to be excavated today whilst the main part of the circus is still used for large public events such as concerts and rallies.References:
The Porta Nigra (Latin for black gate) is the largest Roman city gate north of the Alps. It is designated as part of the Roman Monuments, Cathedral of St. Peter and Church of Our Lady in Trier UNESCO World Heritage Site. The name Porta Nigra originated in the Middle Ages due to the darkened colour of its stone; the original Roman name has not been preserved. Locals commonly refer to the Porta Nigra simply as Porta.
The Porta Nigra was built in grey sandstone between 186 and 200 AD. The original gate consisted of two four-storied towers, projecting as near semicircles on the outer side. A narrow courtyard separated the two gate openings on either side. For unknown reasons, however, the construction of the gate remained unfinished. For example, the stones at the northern (outer) side of the gate were never abraded, and the protruding stones would have made it impossible to install movable gates. Nonetheless, the gate was used for several centuries until the end of the Roman era in Trier.
In Roman times, the Porta Nigra was part of a system of four city gates, one of which stood at each side of the roughly rectangular Roman city. The Porta Nigra guarded the northern entry to the Roman city, while the Porta Alba (White Gate) was built in the east, the Porta Media (Middle Gate) in the south, and the Porta Inclyta (Famous Gate) in the west, next to the Roman bridge across the Moselle. The gates stood at the ends of the two main streets of the Roman Trier, one of which led north-south and the other east-west. Of these gates, only the Porta Nigra still exists today.
In the early Middle Ages the Roman city gates were no longer used for their original function and their stones were taken and reused for other buildings. Also iron and lead braces were broken out of the walls of the Porta Nigra for reuse. Traces of this destruction are still clearly visible on the north side of the gate.
After 1028, the Greek monk Simeon lived as a hermit in the ruins of the Porta Nigra. After his death (1035) and sanctification, the Simeonstift monastery was built next to the Porta Nigra to honor him. Saving it from further destruction, the Porta Nigra was transformed into a church: The inner court of the gate was roofed and intermediate ceilings were inserted. The two middle storeys of the former gate were converted into church naves: the upper storey being for the monks and the lower storey for the general public. The ground floor with the large gates was sealed, and a large outside staircase was constructed alongside the south side (the town side) of the gate, up to the lower storey of the church. A small staircase led further up to the upper storey. The church rooms were accessible through former windows of the western tower of the Porta Nigra that were enlarged to become entrance doors (still visible today). The top floor of the western tower was used as church tower, the eastern tower was leveled, and an apse added at its east side. An additional gate - the much smaller Simeon Gate - was built adjacent to the East side of the Porta Nigra and served as a city gate in medieval times.
In 1802 Napoleon Bonaparte dissolved the church in the Porta Nigra and the monastery beside it, along with the vast majority of Trier"s numerous churches and monasteries. On his visit to Trier in 1804, Napoleon ordered that the Porta Nigra be converted back to its Roman form. Only the apse was kept; but the eastern tower was not rebuilt to its original height. Local legend has it that Napoleon originally wanted to completely tear down the church, but locals convinced him that the church had actually been a Gaulish festival hall before being turned into a church. Another version of the story is that they told him about its Roman origins, persuading him to convert the gate back to its original form.
In 1986 the Porta Nigra was designated a World Heritage Site, along with other Roman monuments in Trier and its surroundings. The modern appearance of the Porta Nigra goes back almost unchanged to the reconstruction ordered by Napoleon. At the south side of the Porta Nigra, remains of Roman columns line the last 100 m of the street leading to the gate. Positioned where they had stood in Roman times, they give a slight impression of the aspect of the original Roman street that was lined with colonnades. The Porta Nigra, including the upper floors, is open to visitors.