Graça Convent is one of the oldest convents in Lisbon. According the legend, in 1362 the statue of Our Lady of Grace appeared in the network of a fisherman. The convent part is nowadays used by the army and is not open for visits, but the church is still in use.
Most of the original Graça Church collapsed in the earthquake of 1755, so what you see today is an 18th century baroque monument. Inside it is partly decorated in 16th and 17th century tiles, while outside is Sophia de Mello Belvedere (famous Portuguese poet ) which is one of the city's most popular viewpoints.
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.