At the foot of the Athens Acropolis, on the territory of the Roman Agora, stands one of the most unusual and well-preserved structures of antiquity — the octagonal Tower of the Winds. This building, which is over two thousand years old, has no analogues in the world. It represents a unique combination of a meteorological station, an astronomical observatory, public clocks, and an architectural masterpiece.
Built around 50 BC (according to some sources — in the 2nd century BC), the Tower of the Winds has stood on this site longer than the Roman Agora itself, into which it was later organically incorporated. Its creator was Andronicus of Cyrrhus — a Greek astronomer and architect who managed to embody in stone the most advanced scientific knowledge of his time.
The Tower of the Winds is built of white Pentelic marble — the very same from which the Parthenon on the Acropolis was constructed. Its height is 12 meters, and its diameter is about 8 meters. The structure has the shape of a regular octagon and is oriented strictly to the cardinal points — each of the eight faces is turned toward one of the main winds blowing in Attica.
On the south side of the tower, traces of water clocks (clepsydra) can still be seen — a complex mechanism that was powered by water from the Athenian aqueduct. Water evenly flowed into a cylinder with a float, and the rising float indicated the time on a marked scale. This system made it possible to measure time regardless of the weather or time of day — a unique achievement for the ancient era.
Inside, the Tower of the Winds is divided into two tiers. The upper tier was possibly used for astronomical observations. In Byzantine times, a chapel was built here, and during the Ottoman period — a dervish lodge (tekke). Frescoes discovered on the interior walls testify to the religious use of the tower in the Middle Ages.
At the top of the tower, a bronze weather vane in the form of a Triton was installed — a mythical creature with the body of a man and the tail of a fish. The Triton held a rod in his hand, which turned under the action of the wind and pointed to that one of the eight sides from which the wind was blowing. This was a true anemometer (an instrument for measuring wind direction) of antiquity. Alas, it has not survived to the present day.
Below the weather vane, on each of the eight sides of the tower, sundials were carved — lines by which the shadow from a special metal rod (gnomon) showed the time. Thus, on a sunny day, Athenians could tell the time by the shadow, and on a cloudy day or at night — by the water clock inside.
The most impressive decoration of the Tower of the Winds in Athens is the eight relief figures carved on each side under the cornice. Each figure depicts a winged god of the wind — an anemoi (from the Greek "anemos" — wind). The figures are executed with great artistic skill: they fly in flight, their clothes billow, and their poses convey the character of each wind.
Here are these eight winds in the order of their arrangement on the Tower of the Winds:
1. Boreas (Βορέας) — north wind. Depicted as a stern bearded man in warm clothing. He blows into a shell, symbolizing the cold, gusty wind that brings winter.
2. Kaikias (Καικίας) — northeast wind. Presented as a bearded man who sprinkles small pebbles from his shield (or from the hem of his clothing). This is a symbol of hail and small ice that this wind brings.
3. Apeliotes (Ἀπηλιώτης) — east wind. A youth with the folds of his clothing full of fruits, ears of grain, and honeycombs. This is a symbol of the soft, warm wind that brings good weather and a rich harvest.
4. Eurus (Εὖρος) — southeast wind. A bearded old man with a cloak, tightly wrapped in clothing. He blows into a shell, but unlike Boreas, his wind is moist, bringing rains and storms.
5. Notus (Νότος) — south wind. Depicted as a figure emptying a vessel of water. This is a symbol of rain and humidity. Notus brings fogs, rains, and heat from the sea. In Athens, this wind often blows in summer, bringing heat and dust from the Sahara.
6. Lips (Λίψ) — southwest wind. A youth holding the stern of a ship (aphron). This is a symbol of a fair wind, favorable for sailors returning to Athens from Africa or Sicily. Lips is depicted barefoot and with an uncovered head.
7. Zephyrus (Ζέφυρος) — west wind. The most beautiful of all — a youth scattering flowers from his clothing. This is a symbol of the gentle, warm spring wind that brings mild weather, blossoming, and the renewal of nature. Zephyrus was considered the herald of spring.
8. Sciron (Σκίρων) — northwest wind. A bearded man with a bronze pot in his hands. The pot with hot coals symbolizes the hot, dry wind that brings summer heat. Sciron was also associated with sudden thunderstorms.
The Tower of the Winds is not just a beautiful building. It is a true scientific instrument, combining in itself:
• A meteorological station — determining wind direction using the Triton weather vane;
• Sundials — on eight faces, allowing time to be measured with accuracy to within half an hour;
• A water clock (clepsydra) — for measuring time at any time of day;
• An astronomical landmark — precise orientation to the cardinal points.
There is no other building in the ancient world with such a combination of functions. The Tower of the Winds in Athens testifies to the high level of scientific development in the Hellenistic era, when Greek scientists made discoveries that were centuries ahead of their time.
The Tower of the Winds is one of the few ancient structures in Athens that was continuously used throughout its entire history.
Antiquity (1st century BC – 3rd century AD): The tower stands on the site, even before the construction of the Roman Agora. It serves as public clocks and a weather station for merchants and residents.
Byzantine period (4th–15th centuries): The tower is turned into a Christian chapel — possibly part of a monastery complex. Frescoes appear inside.
Frankish period (13th–14th centuries): Athens is ruled by the Crusaders. The tower continues to be used as a religious structure — possibly as a Catholic chapel.
Ottoman period (1458–1833): The tower becomes a tekke — a dervish lodge. Partitions and floors are installed inside. Over the centuries, the ground level rises, and the tower ends up half-buried in earth.
18th century: Foreign travelers "discover" the Tower of the Winds for European science. The English architects James Stuart and Nicholas Revett in 1751–1753 sketch and describe the tower, introducing it into the orbit of European architectural thought.
19th century (1833 and onwards): After the liberation of Greece from Ottoman rule, excavations begin. The tower is cleared of earth and Ottoman layers. It becomes one of the symbols of ancient Athens.
20th–21st centuries: Restoration work is carried out. The Tower of the Winds is one of the main attractions of the archaeological park of the Roman Agora, open to visitors.
Among the people, the Tower of the Winds is sometimes called "Aerides" (from the Greek "aeras" — air) or "The Lantern of Demosthenes" — in the Middle Ages, it was mistakenly believed that the famous orator Demosthenes used the tower for solitary studies (although he lived 300 years earlier).
There is a legend that inside the tower there was a hidden underground passage leading to the Athens Acropolis. Archaeologists have found no confirmation, but the rumor lives on. Another belief holds that if you walk around the tower clockwise, making a wish, the winds will carry it to the gods.
Inspiration for architects: The Tower of the Winds served as a model for many buildings around the world. The most famous copy is the Tower of the Winds in Sevastopol (1849). Its elements were also used in the Copenhagen City Hall, the Radcliffe Observatory in Oxford, and many other structures in the neoclassical style.
Influence on literature: The Tower of the Winds is mentioned in the works of many travel writers of the 19th century, including Lord Byron.
Preservation: It is one of the few ancient buildings to have preserved its roof (which collapsed and was restored in the 19th century) and almost completely its walls.
Orientation accuracy: Each face of the tower deviates from the exact direction of the corresponding wind by no more than 10 degrees — astonishing accuracy for the instruments of the 1st century BC.
• Look up: Find the figures of the eight winds under the cornice. Try to determine which is which. Pay attention to the attributes in their hands.
• Examine the faces: On each side of the tower you will see carved lines — these are the remains of sundials. If you look closely, you can find the hole for the gnomon (the rod).
• Walk around: Go around the perimeter of the tower to see all eight figures and understand how the building is oriented to the cardinal points.
• Look inside: (if access is open) — inside you can see the remains of the water clock and later layers: fragments of Byzantine frescoes and Ottoman plaster.
• Photograph the details: The best angles are from the southeast, where both the tower and the Fethiye Mosque are visible in the background, as well as from the west, from the Gate of Athena Archegetis.
The Tower of the Winds in Athens is not just an ancient monument. It is evidence of how far the ancient Greeks advanced in the natural sciences. By visiting the Tower of the Winds, you will touch the amazing heritage of Hellenistic science, see one of the finest examples of ancient architecture, and understand why this modest octagonal building has for centuries inspired architects, scientists, and travelers from all over the world.