Many remains of the ancient acropolis are still standing, consisting probably of the remains of highly decorated temples of which Sozomen speaks; it is now enclosed in ancient castle walls called
Kalat el-Mudik (Kŭlat el-Mudîk); the remainder of the ancient city is to be found in the plain. The most significant collection of objects from the site, including many significant architectural and artistic objects, that can be seen outside of Syria are in Brussels at the
Cinquantenaire Museum. As a result of the
civil war in Syria, the ancient city has been damaged and looted by treasure hunters. In April 2017,
Al-Masdar News published satellite photographs revealing the site was covered in hundreds of holes dug by treasure hunters seeking ancient artifacts.
Great Colonnade |alt=A view of road lined with columns, some of which are still topped with a decorative frieze The Great Colonnade was situated along the main avenue of Apamea and ran for nearly , making it among the longest in the
Roman world. It was rebuilt after the original, dating from the Seleucid Empire, was devastated along with the rest of Apamea in the
115 AD earthquake. Reconstruction started immediately and over the course of the second century the city was completely rebuilt, starting with the Great Colonnade. The colonnade was aligned along the north-south axis, making up the city's "
cardo maximus". Starting at the city's north gate, the colonnade ran in an uninterrupted straight line to the south gate. The northern third of the colonnade's stretch is marked by a monumental votive column that stood opposite the baths. The colonnade passed through the centre of the city and several important buildings were clustered around it, including the baths, the
agora, the Temple of
Tyche, the
nymphaeum, the
rotunda, the
atrium church and the basilica. On either side of the street a -wide colonnade ran its full length. The columns were high and in diameter. They stood on square bases of 1.24 m on a side and 0.47 m high. The columns display two main designs: plain and distinctive
spiral flutes. Archaeologist Jean Lassus argues that the former dates back to the
Trajanic period, and the latter to that of
Antoninus Pius. The colonnade's porticoes were paved with extensive mosaics along the full stretch of the colonnade. The city, was however, later sacked by the
Sasanians under
Adarmahan. A reconstructed section of the colonnade can be seen in the Brussels
Cinquantenaire Museum.
Roman theatre Originally built as a
Hellenistic style theatre in the early
Seleucid Empire, the theatre was expanded and remodelled in the early
Roman period, when the main stage and entrances were reorganized in a more typical Roman fashion. The
115 Antioch earthquake caused severe damage to the structure. It was rebuilt soon afterwards, under the patronage of both
Trajan and
Hadrian. The theatre was further expanded in the first half of the third century CE. Under the
Byzantine Empire the theatre's
drainage basin was restructured and a
qanat was built through the middle of the lower stage. By the late Byzantine period the theatre had stopped serving as a centre for theatrical performances. However, the theatre and its
qanat continued to be an important water source during the Byzantine and Islamic periods. The theatre was built into a steep hill overlooking the
Orontes River valley. The theatre, along with the one at
Ephesus, is one of the largest surviving theatres of the
Roman Empire with an estimated seating capacity in excess of 20,000. The only other known theatre that is considerably larger was the
Theatre of Pompey in
Rome. and only one-eighth of the site has been exposed so far. One of the main features at the theatre is its water basin and the elaborate Roman piping system used in it. The recently excavated
terracotta system is located along the eastern ground entrance and is well preserved.
Great hunting mosaic This mosaic, now in the
Cinquantenaire Museum, Brussels, was discovered in 1935 in the reception room of what was probably the palace of the Roman governor of the province of
Syria Secunda. Its area is 120 m2. The great mosaic dates from 415–420 AD and is amongst the most prestigious of this type of composition. It is comparable technically and thematically with mosaics in the Palace of the
Byzantine emperors in Constantinople, of the same period. An inscription at the entrance states: "During the most beautiful Apellion, the triclinium was rebuilt in the month Gorpiaios, third indict, in the year 851" (September, 539 AD).
Synagogue Near the city's center, a 4th-century Jewish synagogue was discovered. It features a geometric mosaic floor, dating from around 391 CE. The mosaic includes 19 inscriptions recording the names of the donors, as well as their offices, including '
archisynagogos' and '
hazzan' or 'diakonos.' In the 5th century, a Christian church was built on the site of the synagogue. ==Bishopric==