In the eastern part of the historical center of Athens, at the intersection of Amalias Avenue and Dionysiou Areopagitou Street, directly opposite the entrance to the archaeological zone of the Temple of Olympian Zeus, stands the Arch of Hadrian. This monument is clearly visible from the "Acropoli" metro station and serves as a natural landmark for tourists traveling from Syntagma Square to the Acropolis or to the Panathenaic Stadium.
Unlike many ancient monuments that were discovered by archaeologists only in the 19th–20th centuries, the Arch of Hadrian never went underground. It remained visible throughout its long history — first as a symbol of Rome`s greatness, then as part of the Byzantine and Ottoman urban landscape, and today as one of the most recognizable landmarks of the Greek capital.
The height of the arch reaches 18 meters, the width is 13.5 meters, and the depth is about 2.3 meters. It is entirely built of white Pentelic marble — the very same from which the Parthenon on the Acropolis was constructed. The marble was quarried on Mount Pendelikon, located approximately 18 kilometers northeast of Athens.
History of the Arch of Hadrian
The arch was erected in 131 AD (according to some sources — in 132 AD) in honor of the Roman emperor Publius Aelius Trajan Hadrian. The construction was timed to coincide with a momentous event — the official opening of the Temple of Olympian Zeus, one of the largest temples of the ancient world, whose construction had stretched over several centuries and was completed precisely under Hadrian.
Who exactly was the customer for the arch is not known for certain. Historians agree that it was either the Athenian citizens themselves or the newly created Panhellenion, a pan-Greek association based in Athens. In any case, the arch became an expression of gratitude to the emperor who generously patronized the city.
Who was this man who received such an honor?
Emperor Publius Aelius Trajan Hadrian (76–138 AD) is considered one of the five "good emperors" of Rome — an era when the Roman Empire reached the peak of its power and prosperity. He was not just a politician and military commander, but also a passionate admirer of Greek culture.
Hadrian was nicknamed "The Greek Emperor" — and not by chance. He spoke and wrote Greek fluently, knew Greek philosophy and literature, and in his youth even received the nickname "Graeculus" (Little Greek) for his passion for everything Hellenic. Becoming emperor, he generously gifted Athens: he built a library, an aqueduct, completed the Temple of Olympian Zeus, and, of course, was honored to be immortalized in stone.
Architecture of the Arch of Hadrian
At first glance, the Arch of Hadrian resembles Roman triumphal arches — such as the Arch of Titus or the Arch of Constantine in Rome. But upon closer inspection, it becomes obvious that this structure is unique and represents a hybrid of Roman and Greek architectural traditions.
Lower tier: The lower part of the arch is a wide arched opening 6.5 meters high, through which the road passed in ancient times. On the sides of the arch are pilasters (flat vertical projections of the walls), crowned with capitals of the Corinthian order — the most lush and decorative of the Greek orders, which was especially loved in Rome. Similar but taller pilasters adorn the outer corners of the structure.
Upper tier: The upper part of the arch (attic) is radically different from Roman triumphal arches. Instead of a massive wall intended for placing sculptures and bas-reliefs, here we see an elegant composition of columns and pilasters dividing the space into three rectangular openings.
The central opening is crowned with a triangular pediment — a characteristic element of Greek temple architecture. On either side of it are two smaller openings, covered by Ionic architraves.
Initially, all three openings of the upper tier were closed with thin marble slabs, creating a semblance of niches. According to legend, in the 19th century, Queen Amalia, the wife of the first king of independent Greece, Otto I, ordered the central slab to be removed to open the view of the Acropolis. Since then, the arch has acquired its modern appearance.
Symmetry and materials of the Arch of Hadrian
The entire structure is perfectly symmetrical — front and back, left and right. This is not just an aesthetic solution, but also an engineering one: the arch was built without the use of cement or mortar, only on marble blocks fastened with metal clamps.
Two inscriptions on the Arch of Hadrian
The most famous feature of the Arch of Hadrian is the two inscriptions carved on the architrave (the beam resting on the columns) on both sides of the arch. They are the key to understanding the symbolic meaning of this monument.
From the side of the Acropolis (northwest side):
ΑΙΔ` ΕΙΣΙΝ ΑΘΗΝΑΙ ΘΗΣΕΩΣ Η ΠΡΙΝ ΠΟΛΙΣ: "These are Athens, the ancient city of Theseus"
From the side of the Temple of Zeus (southeast side):
ΑΙΔ` ΕΙΣ` ΑΔΡΙΑΝΟΥ ΚΟΥΧΙ ΘΗΣΕΩΣ ΠΟΛΙΣ: "This is the city of Hadrian, not of Theseus"
These lines are full of deep meaning.
Theseus is a legendary hero and king of Athens who, according to myth, united the disparate settlements of Attica into a single polis. He was the founder of the city, its father-creator in the eyes of the Athenians. The inscriptions create a dialogue between two eras. On one side of the arch are the old Athens, the city of Theseus, classical Greece with its Acropolis and Ancient Agora. On the other side are the new Athens, the city of Hadrian, the Roman part with the Temple of Zeus, the Library of Hadrian, and other buildings of the emperor.
For a long time, it was believed that the arch stood on the line of the ancient city wall and physically separated the old and new districts of the city. This district to the east was even called Hadrianopolis ("the city of Hadrian"). However, later archaeological excavations showed that the wall passed approximately 140 meters east of the arch, and its symbolic meaning is more important than the geographical one.
Modern researchers offer an even more interesting interpretation: the inscriptions do not divide the city into two parts, but proclaim all of Athens as a new city, reborn by Hadrian. The first inscription: "these are Athens, once the city of Theseus." The second: "this is the city of Hadrian, not of Theseus" — asserts that the emperor became the new founder of the city on a par with the mythical hero.
Sculptures and decorations: what was lost?
Today the arch looks rather ascetic — smooth marble surfaces, devoid of sculptures. But this was not always the case.
Historians suggest that on top of the lower tier, on either side of the central niche of the upper tier, there were statues. The most likely candidates for these statues are Hadrian himself and Theseus, in accordance with the text of the inscriptions.
Some researchers suggested that several additional statues might have been installed on the attic (the upper tier). However, a detailed study of the lower part of the arch showed that there are no traces of fastenings for statues, and the surface of the stone is too roughly finished for sculptures to stand on it.
It is also possible that instead of three-dimensional statues, the central niche of the upper tier was decorated with pictorial reliefs, which were lost in the Byzantine period.
History of the preservation of the Arch of Hadrian in Athens
The Arch of Hadrian is one of the few ancient structures that was never completely buried underground. When in the mid-18th century the English architects James Stuart and Nicholas Revett first measured and sketched the arch, its base was sunk into the ground only three feet (about 90 cm). This means that for almost 1700 years the arch stood exposed to all winds, rains, and historical vicissitudes — and survived in remarkably good condition.
However, the 20th and 21st centuries proved harsher for the arch than all previous centuries. Atmospheric pollution from cars on busy Amalias Avenue caused serious damage to the marble. The stone darkened and partially crumbled, and the inscriptions became less clear.
In 2006–2008, the Greek Ministry of Culture carried out large-scale restoration work. Under the direction of chemical technologist Nikos Beloyannis from the Center for Stone Protection, the surface of the arch was cleaned with special chemical compounds that do not damage the ancient marble.
The Arch of Hadrian today: what to see
Today the Arch of Hadrian is not just an ancient monument. It is part of the urban landscape of the historical center of Athens, a witness to their continuous history. It stands on the edge of a busy transport interchange connecting the city center with the southern districts.
What you will see on the site:
• The arch itself, 18 meters high, remarkably well preserved to this day;
• The contrast between the strict lower tier and the elegant upper tier with its pediment;
• Two inscriptions — in Greek, which can be read in good light;
• The view of the Acropolis through the arch — one of the most photographed angles of Athens;
• The ruins of the Temple of Olympian Zeus — literally across the road, behind the fence of the archaeological zone.
An important nuance: The Arch of Hadrian is in an open space, and it can be viewed for free at any time — it is not fenced off and is accessible 24/7. However, if you want to get close to the base of the arch and examine the details, you will need a ticket to the territory of the Temple of Olympian Zeus (or a combined ticket for the main archaeological sites of Athens).
Interesting facts about the Arch of Hadrian in Athens
Inspiration for architects: The Arch of Hadrian, along with the Tower of the Winds, inspired European architects of the neoclassical era. Its elements can be recognized in many 19th-century buildings across Europe.
Not quite a triumphal arch: Unlike classical Roman triumphal arches, the Arch of Hadrian was not built to celebrate a military victory. It is rather an honorary gate — a monumental gesture of gratitude from the city to its benefactor.
Connection with Queen Amalia: It was at the order of Queen Amalia, wife of the first king of independent Greece, that the marble slab was removed from the central opening of the upper tier, opening the view of the Acropolis. The avenue onto which the arch faces is named after her — Amalias.
Symbol of Athens: Throughout the 19th and 20th centuries, the arch was often depicted on postcards and in guidebooks as one of the main symbols of Athens — along with the Acropolis and the Panathenaic Stadium.
The Arch of Hadrian is one of the most accessible and photogenic ancient monuments of Athens. It does not require a ticket, has no opening hours, and is located right on the route from the center to the Acropolis. In five minutes of viewing, you will see an example of a rare architectural hybrid — a Roman arch with a Greek pediment, read two famous inscriptions dividing the city of Theseus and the city of Hadrian, and take an impressive shot of the Acropolis framed by marble arches. A must-stop for anyone who appreciates ancient history and good photography.
