The Arch of Galerius - locally known as Kamara - is certainly one of the most important monuments in Thessaloniki. The arch was probably built by the city of Thessaloniki between 298 and 305 A.D. to commemorate Galerius’ victorious campaign against the Persians.

Originally it was a triple arch and four main and four supporting pillars. The central arched opening was 9,7 meters wide and 12,5 meters high; the secondary openings on the other side were 4,8 meters wide and 6,5 meters high. Only parts of the masonry symbols of the arches and three of the eight pillars survived. The reliefs on the two pillars depict scenes from Galerius’ victories against the Persians in 297 A.D. Among others one can see scenes of war, mounted battles and victories, triumphs and ceremonies, separated by relief flowers and branches.

The arch - standing right in the middle of the city along Egnatia Street - is one of the landmarks of Thessaloniki.