Rikalanmäki was one of the most remarkable Bronze and Iron Age towns in Finland. According legends, It was a very wealthy trading centre. The heyday of Rikalanmäki was in 11th and 12th centuries when Vikings and foreign merchants exchanged metals and weapons to fur from inner Finland. There are evidences of indirect trade connections even to the Arabic countries. According the legend Birger Jarl landed to the Rikala harbor to start the second crusade to Finland.
Archeologists have found several remarkable treasures from the ancient cemetery in Rikalanmäki including swords, personal equipments, money and remains of clothes. Most valuable artifacts are so-called Sword of Gicelin and silver jewels named as “Halikon käädyt”. Both findings are from the 12th century and situated to National Museum in Helsinki.
Rikalanmäki hill is one of the most significant archaeological sites in Finland as well as one of the most important cultural landscapes protected by the National Board of Antiquities in South-west Finland. A signposted archaeological trail sheds light on the rich past of the hill. Exhibitions and an open-air theatre in summer, as well as a summertime restaurant.
The Arch of Constantine is situated between the Colosseum and the Palatine Hill. It was erected by the Roman Senate to commemorate Constantine I's victory over Maxentius at the Battle of Milvian Bridge in 312. Dedicated in 315, it is the largest Roman triumphal arch. The arch spans the Via triumphalis, the way taken by the emperors when they entered the city in triumph.
Though dedicated to Constantine, much of the decorative material incorporated earlier work from the time of the emperors Trajan (98-117), Hadrian (117-138) and Marcus Aurelius (161-180), and is thus a collage. The last of the existing triumphal arches in Rome, it is also the only one to make extensive use of spolia, reusing several major reliefs from 2nd century imperial monuments, which give a striking and famous stylistic contrast to the sculpture newly created for the arch.
The arch is 21 m high, 25.9 m wide and 7.4 m deep. Above the archways is placed the attic, composed of brickwork reveted (faced) with marble. A staircase within the arch is entered from a door at some height from the ground, on the west side, facing the Palatine Hill. The general design with a main part structured by detached columns and an attic with the main inscription above is modelled after the example of the Arch of Septimius Severus on the Roman Forum.