Pausanias describes the Asclepieion as a museum of works of art—primarily statues—rather than as a typical sanctuary for the treatment of patients. It was the most prominent site in Messene, the center of the city’s public life, operating alongside the adjacent marketplace. More than 140 pedestals for bronze statues—primarily of political figures—and five platforms surround the Doric temple and the altar, while many are also situated along the colonnades. An almost square open-air space (71.91 × 66.67 m) is framed on the inside by four colonnades, open toward the central open-air space. Each colonnade on the north and south sides had 23 Corinthian columns on its façade supporting an entablature, consisting of an Ionic entablature and a frieze with relief bucrania alternately adorned with floral garlands and rosettes. The porticoes on the east and west sides were similar, but each had 21 columns. Each colonnade contained a second interior colonnade with 14 columns on the north and south sides and 13 on the east and west sides.
In the eastern wing of the peristyle courtyard stands a complex of three structures: the small, covered, theater-like Ecclesiasterion, the Propylon, the Synedrium or Bouleuterion, and the Archive Chamber of the Secretary of the Synedrium. Along the western wing is a row of rooms—Houses—which, according to Pausanias’s description, contained statues of the following deities in order from south to north: Apollo and the Muses, Heracles of Thebes and Epaminondas (House N), Tyche (House M), and Artemis Phosphorus (House K).
The northern wing of the Asclepieion is enclosed by a large two-part structure built on a high podium, accessible via a central, monumental staircase that terminates at its northern end in a propylon with a pediment. The building’s two halls, to the right and left of the northern staircase, which are identically divided into five rooms, have been identified as the Sebasteion or Caesareion mentioned in the inscriptions. They were dedicated to the worship of the goddess Roma and the emperors. At the eastern end of the north wing, at the level of the portico, stands the meticulously constructed House H with a statue pedestal. The construction of the Asclepieion complex, which must have taken place immediately after the events of 215/14 B.C., appears to have been part of a grand architectural program, modeled after the Athenian Acropolis, aimed at presenting the Messenians as a distinct nation in the Peloponnese with deep roots in the country’s pre-Doric and Doric past. Almost all of the sculptures in the Asclepieion complex were the work of the sculptor Damophon, with the exception of the chrysolite statue of Messene and the iron statue of Epaminondas (Paus. 4.31.10).
Most of the central open-air area of the Asclepieion is occupied by the imposing Doric peripteral temple and its large altar. The temple was a Doric peripteral structure (6 × 12 columns) with a pronaos and an opisthodomos, each of which featured two columns between the pilasters. The monument’s external dimensions are 13.67 × 27.94 m, while its total height was approximately 9 m. It rests on a three-tiered base. On its eastern side, where the entrance is located, there is a ramp. The cella, the pronaos, and the opistodomos are built of local limestone, while the pteron is made of plastered sandstone. The adyton was separated from the rest of the temple by a partition, and at its rear there was a sculpted cult composition. No votive offerings associated with the worship of Asclepius, the god of healing, were found. This confirms the view that the Asclepius of Messene was not primarily known for his healing powers, but rather for his political role as the “citizen of Messene” (Pausanias 4.26.7). He held his place within the genealogical tree of the mythical kings of Messenia, both those who reigned before and after the Heracleids’ descent into the Peloponnese. His mother was Arsinoe, daughter of Leucippus, after whom the Arsinoe Fountain in the marketplace was named.
The Ecclesiasterion
It is a small theatrical structure with a cavea inscribed within a rectangular shell and a circular orchestra, with a stage diameter of 9.70 m and a width of 21 m. It had a proscenium with three openings at the front and an exit staircase at its eastern end. The auditorium, shaped like a semicircle, is divided by a diazoma into upper and lower sections. The lower cavea consisted of eleven rows of stone seats and was divided into three tiers by two staircases. Two additional staircases leading upward are located at the ends of the cavea near the side aisles. Two entrances on the side of the ascending road to the east lead, one to the orchestra via a descending staircase and the other directly to the diazoma between the lower and upper auditoriums. The cavea is surrounded by a sturdy retaining wall, the lower part of which on the eastern and northern sides is built with smooth upright stones, while at the top it features a false-isodome vaulted system, which is also found in Priene in Asia Minor. A covered staircase in the northwest corner of the retaining wall led to the upper tier of the cavea from the north side. At the eastern end of the orchestra, in front of the staircase leading to the building’s eastern entrance, a a large bronze equestrian statue was erected in honor of the Hellenarch Saitides.
The Propylaea
leads from the ascending eastern road to the lower-lying Asclepieion. Approximately halfway along its length, it featured a transverse wall with three doorways, a larger central one and two smaller ones at the ends, of which the thresholds are preserved, complete with notches for the bolts and latches, as well as for securing the wooden jambs. To the east of this wall was a portico supported by four square pillars that held up Ionic columns. Between the outer row of pillars and the transverse wall with the three-arched doorway, the floor—consisting of large square stone blocks—has been preserved. The portico, which faced the Asclepieion, featured two Corinthian columns. In late antiquity (3rd/4th centuries AD), this western portico had been provisionally repaired. The two mismatched Corinthian column bases that remain in place date from this later repair.
The Bouleuterion
It is the primary assembly hall for delegates representing the cities of autonomous Messenia. It is nearly square in shape, measuring 20.80 × 21.60 m, and has a four-gabled roof supported internally by four pillars. The three sides (north, east, and south) were enclosed by a 1.20-meter-thick wall, while the entrance was located only on the west side, consisting of two large three-door openings.Along the three enclosed sides, a continuous stone bench has been preserved, featuring an integral backrest and carved lion’s paws at both ends. The total length of the seating area (56 m) allowed 76 delegates—the number of members of the sacred senate—to sit comfortably.
The Archive Hall
Measuring 16.45 × 19.75 m, it consists entirely of structures from the Early Byzantine period. Given the public and political nature of the spaces in the eastern wing of the Asclepieion and the proximity of this hall to the city’s Bouleuterion, it is almost certain that it served a similar public function. Moreover, according to an inscription found in front of the hall’s eastern entrance, it must have housed the Archives of the Secretary of the Assemblies.
The First Sanctuary of Orthia
To the northwest of the Asclepieion, a columned temple was uncovered, measuring 8.42 × 5.62 with an almost square cella, a shallow, wider narthex, and a ramp in the center of the four-columned façade. Around the temple’s façade, votive pedestals and inscribed columns were uncovered. Along the northern side, two coin hoards were found, consisting of bronze coins from Messene and silver coins from the Achaean League, dating to the mid-2nd century B.C., as well as a large number of clay figurines depicting primarily Artemis the Huntress and Phosphorus. The fragments found north of the temple must have belonged to a marble cult statue of Orthia. After the construction of the Asclepieion, the sanctuary of Orthia ceased to function, and the worship of the goddess was transferred to House K in the western wing of the complex—that is, to the newer Artemision.
The Artemision K
The most important House in the western wing of the Asclepieion is House K, which housed the sanctuary of Artemis. It is rectangular and divided into three naves by two rows of two columns arranged transversely. Access to the central, wider aisle is through a three-part entrance with two amphikion columns between piers in the middle of the eastern long side. At the rear stands the pedestal of the colossal cult statue, which depicted Artemis Orthia as Phosphorus, holding a torch in her hand and wearing a short tunic with a nevrida in the style of a huntress. From this statue, the work of Damophon, the goddess’s left hand—which held the torch—has been found, as well as parts of her colossal head and feet. In front of the cult statue stood an offering table (the base survives), while eleven pedestals are arranged in a circle, three for statues of priestesses and eight for statues of young girls. Mature women served as priestesses, performing secret rituals on behalf of women who sought the goddess’s help. Sculpted images of these priestesses (after their successful term of service) were commissioned inside the temple by the elders of Uphesia. Parents dedicated statues of their daughters to the sanctuary; these daughters took part in the initiation rites that marked their passage into womanhood. The goddess’s altar, with a special pedestal next to it for the temporary display of her statue, is located in the open courtyard outside the portico and aligned with the temple’s entrance.
The Sebasteion
The two large rectangular halls along the north wing of the Asclepieion have been identified as the Sebasteion or Caesareion. In these halls, which were internally divided into five identical spaces, were accessed from the side of the northern stoa of the Asclepieion by two small, curved, hidden staircases. The monumental central staircase, 7 m wide, between the two halls leads via ten steps to a propylon with two columns between pilasters. Lower down, toward the side of the portico, the staircase ends at two Corinthian columns between pilasters. This northern wing was constructed at the same time as the entire Asclepieion complex in the late 3rd century B.C., and its original use had no connection to the cult of the emperors. The two identically laid-out halls, before they came to house the cult of the emperors and Rome, were used as banquet halls (houses with couches) for city officials during the festivals in honor of Asclepius.
The Hellenistic Baths
The rectangular building outside the south side of the Asclepieion has at times been considered a prytaneion or a priests’ house. However, it should be recognized as a Hellenistic-period bath complex. It features two furnaces for heating water and paved rooms that served the needs of bathers. To the northwest of the baths stands a separate structure that was used as a latrine. The early phase (Late Classical–Hellenistic) of the baths consists of a separate rectangular structure founded on an artificial platform supported by tall, evenly spaced walls to the west and south. Along the western wall, which has a drainage channel at its southern end, runs a narrow passageway that leads at its northern end to an entrance with a threshold and a door. The presence of corridors is one of the building’s distinctive features. Another distinctive feature is the presence of four paved halls where baths were located. The most ceremonial space occupies the BA section of the building and functioned as a shallow pool. The building is an interesting example of a public bath complex, which can be compared—though not identical—to the baths of Olympia, Arcadian Gortyna, and Eretria. Its earliest phase began in the late 4th century BCE and lasted until the 2nd century BCE. During the second phase (the Augustan period), the furnace was built, the entrance was sealed off, and a new access point was created.