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            | The 
              Arch of Galerius was built in 305 AD, to celebrate the definitive 
              triumph of the Emperor over the Persians.. 
 The whole structure consisted 
              of 4 main pillars and 2 smaller ones on each side, the former supporting 
              a central dome. Through the latter, a connection to the Galerius 
              Palace (to the south) and to the Rotunda (to the north) was possible. 
              Today, only a part of the monument still stands and there is no 
              information on the period or the circumstances under which the rest 
              of the arch was destroyed.
 
 The Arch of Galerius belongs 
              to the Galerian group of buildings, in the SE part of the historical 
              center of Thessaloniki. From the original triumphal arch only three 
              pillars and a part of the brick ma-sonry above are preserved to 
              the present day. The two main pillars are covered with sculpted 
              marble slabs, which narrate the wars of Galerius against the Persians. 
              The central arched opening is 9.7 m wide and 12.5 m high and the 
              secondary 4.85 m and 6.5 m respectively.
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