New archaeological excavations at an ancient gymnasium in northern Greece have revealed lecture rooms, mosaic-floored banquet halls and architectural features that reinforce the identification of the complex as the site where Aristotle tutored Alexander the Great.
The Royal Gymnasium of ancient Mieza, near the modern city of Naousa, dates to the middle of the 4th century B.C., during the reign of Philip II of Macedon, Alexander’s father. Systematic excavations began in 2024 under the direction of archaeologist Angeliki Kottaridis, as part of a project involving Greece’s Ministry of Culture and the Municipality of Naousa.
The excavation covers about 3 hectares (7.4 acres) and has revealed parts of a palaestra, a stadium, covered walkways, teaching rooms and water-supply infrastructure. One of its most prominent features is a covered running track, or xystos, measuring about 200 meters (656 feet).
This year’s work has focused on the eastern side of the complex, where archaeologists identified lecture rooms with stone benches and a large three-part structure containing two banquet halls.
Mosaic floors reveal a monumental royal complex
The newly excavated three-part structure covers more than 160 square meters (1,722 square feet). A central vestibule connects two andrones, formal dining rooms used for communal meals and drinking gatherings known as symposia.
Both rooms preserve mosaic floors, with raised platforms along their edges showing where dining couches once stood. Each room held 10 couches, accommodating at least 20 diners.
The quality and construction techniques of the mosaics closely resemble those found at the royal palace of Aigai, the ancient capital of Macedonia. That similarity provides additional evidence connecting the gymnasium to the Macedonian royal environment.
The excavation has also uncovered architectural elements from the palaestra, including sections of an Ionic frieze, an Ionic column and capital, and a rare section of a Doric corner architrave from the courtyard’s colonnade. Archaeologists expect the architrave fragment to help reconstruct the palaestra’s architecture more precisely.
The overall complex was considerably larger than the newly excavated area. Earlier work uncovered a palaestra, stadium, stoas and waterworks, while the xystos provided a covered space for athletic training.
Archaeologists have also recovered pottery, coins and four writing styluses, further supporting the site’s educational function.
Why Mieza is linked to Aristotle and Alexander
The connection between Mieza and the education of Alexander the Great comes from ancient literary accounts as well as modern archaeological research.
Plutarch wrote in his Life of Alexander that Philip II invited Aristotle to educate his son and other young Macedonian nobles. He said Philip assigned Aristotle a place near Mieza where the philosopher and his students could study. Plutarch also described stone seats and shaded walks associated with the school.
Modern researchers initially associated that school with the Sanctuary of the Nymphs at Mieza. More recent archaeological research has instead identified the monumental gymnasium as the more likely location of the institution described in the ancient sources.
Greece’s Ministry of Culture says the latest excavation findings strengthen that identification. The gymnasium’s date, scale, architecture and combination of athletic and teaching facilities are consistent with its proposed role as a major educational institution for young Macedonian elites.
However, the archaeological evidence does not include an inscription naming Aristotle or Alexander in the newly uncovered rooms. The identification therefore rests on the relationship between the physical remains and the ancient written accounts.
Greek cultural heritage authorities describe the gymnasium as the place where Aristotle taught Alexander and other young Macedonians, while archaeological research has increasingly favored the site over the nearby Sanctuary of the Nymphs as the physical location of the school.
Excavations reveal how the gymnasium functioned
The new lecture rooms provide evidence of organized teaching within the complex. Their stone benches were designed for students to sit during instruction, while the surrounding athletic facilities show that education formed part of a broader training system.
The banquet halls add another architectural component to the complex. Their mosaic floors and raised platforms for dining couches indicate that formal communal gatherings also took place within the gymnasium.
The site’s relationship with Aigai provides another clue to its status. Aigai was the first capital of the Macedonian kingdom, and its monumental palace contains elaborate mosaics and painted decoration. The similarities between the palace and the Mieza gymnasium point to a shared architectural tradition and reinforce the site’s connection with the Macedonian court.
The gymnasium later suffered extensive damage and dismantling under Roman rule. The Greek Ministry of Culture says archaeologists have nevertheless recovered substantial remains beneath destruction layers and extensive fire deposits, including walls with high-quality plaster and ancient floors.
The complex was systematically dismantled following the second Battle of Pydna in 148 B.C., when Rome defeated the revolt of Andriscus and established direct control over Macedonia.
Excavations at Mieza are continuing. Researchers hope further work will clarify the layout and functions of the Royal Gymnasium and provide additional evidence about the institution associated with one of antiquity’s most famous teacher-student relationships.
The discoveries do not prove that every room was used for Aristotle’s teaching activities. They do, however, add substantial physical evidence to the case that the monumental gymnasium at Mieza was the royal educational complex where Alexander and other young Macedonian elites received their training.