👑 The Temple of the Attalids – Where Politics Met Religion
At first glance, it may seem surprising that a temple associated with a king was built beside an altar dedicated to Dionysus. For the ancient Greeks, however, this was nothing unusual. Religion and politics were closely intertwined, and exceptional rulers could be honoured with cult worship almost on a par with the gods themselves.
The temple was erected during the first half of the 2nd century BC and is generally associated with Eumenes II, king of Pergamon and a member of the Attalid dynasty. Following his victory over the Galatians, the people of Kos chose to honour their ally by establishing a sanctuary that celebrated the friendship between the two states.
Archaeologists believe that the pronaos once housed a statue of Eumenes II, honoured alongside a deity—most likely Dionysus. This remarkable combination illustrates how, in the ancient world, religion also served as a way to express gratitude and strengthen political alliances.
Today, only the stepped podium of the temple and several stone bases remain. These were probably used to support statues or receive votive offerings dedicated by worshippers.
💡 Did You Know?
The Attalid dynasty transformed Pergamon into one of the most powerful kingdoms of the Hellenistic world. Its rulers were renowned not only for their military achievements, but also for sponsoring temples, libraries, and works of art throughout the Greek world.
⏳ Step Back in Time...
The people of Kos gather before the temple. The scent of incense fills the air as priests perform sacred rituals. Beside the image of Dionysus stands a statue of the victorious king of Pergamon. To those assembled, there is nothing unusual about this. By honouring the gods, they also pay tribute to the man who had become one of their city's most important allies.
🧱 Stones That Built Successive Civilisations
The story of the Altar of Dionysus and the Temple of the Attalids did not end with the decline of ancient Kos. Like many other monuments on the island, they fell victim to earthquakes, rebuilding, and the changing course of history.
The altar was probably damaged during the earthquake of AD 142, but it was later rebuilt. It finally disappeared in Late Antiquity, when new buildings were constructed on the site.
Several centuries later, the stone blocks from both the altar and the temple began a new chapter in their history. The Knights Hospitaller reused them as building material for the nearby Neratzia Castle. Among these stones were carved reliefs depicting scenes associated with Dionysus, incorporated into the medieval fortress.
Today, only the foundations remain.
Yet they remind us that throughout the history of Kos, each generation built something new upon the legacy of those who came before.
Reusing stone blocks from older buildings was common practice in both antiquity and the Middle Ages. As a result, fragments of ancient Greek and Roman temples can still be found embedded within the walls of medieval monuments across the island of Kos.
⏳ Step Back in Time...
Take a moment to look at these scattered stones differently. Some may once have formed part of the Altar of Dionysus. Centuries later, they became part of a medieval castle. Today, they rest once again near the place where their story began. Each stone carries the memory of several different ages.
🚶 Is It Worth Visiting?
Absolutely—especially if you're already visiting Casa Romana or exploring the historic centre of Kos Town. Although only a few remains have survived, the Altar of Dionysus and the Temple of the Attalids offer a different perspective on the ancient city, revealing a world where religion, politics, and everyday life were deeply interconnected.
📌 Remember
🍇 This was the site of the monumental Altar of Dionysus, where sacrifices were offered beneath the open sky.
👑 The neighbouring temple commemorated the alliance between the city of Kos and the powerful Kingdom of Pergamon under the Attalid dynasty.
🧱 Although only the foundations remain today, the stones of these monuments witnessed several different eras and were reused many times throughout history.
🏺 An Altar Rather Than a Temple
Although this site is often referred to today as the Temple of Dionysus, its most important feature was actually a monumental open-air altar.
Rather than a roofed building surrounded by columns, the sanctuary centred on a large Π-shaped altar approached by a gently sloping ramp. At its heart stood a stone sacrificial table where offerings and animal sacrifices were made in honour of Dionysus during religious ceremonies.
Archaeologists believe the altar was richly decorated with sculpted reliefs depicting scenes from the life of Dionysus, as well as the Attalid victory over the Galatians. These carvings are one of the key reasons scholars believe that the neighbouring temple was associated with the Attalid dynasty of Pergamon.
Today, it takes some imagination to picture the sanctuary as it once appeared. Only parts of the foundations remain, yet it was here that the most important ceremonies dedicated to the worship of Dionysus once took place.
⏳ Step Back in Time...
You are not entering a temple. You are standing beneath the open sky. Before you rises a monumental altar, surrounded by the people of Kos. Here, offerings are presented and sacred ceremonies are performed in honour of Dionysus. For the ancient Greeks, the ritual itself mattered far more than the enclosed space of a building.
🏛️ Why Is This Site Worth Visiting?
Most visitors walk straight past these ruins without stopping. There are no towering columns or dramatic remains to catch the eye. Yet this quiet archaeological site offers a fascinating glimpse into everyday life in ancient Kos.
It was here that sacrifices were offered to Dionysus, the Greek god of wine, theatre, and celebration. Beside the altar stood a temple dedicated to a ruler of the Attalid dynasty, reminding us that in the ancient Greek world, religion and politics were often inseparable.
Although only the stone foundations survive today, the site is well worth a few minutes of your time—especially since it lies directly opposite Casa Romana and can be visited free of charge.
To understand why Dionysus was worshipped here, it is worth first exploring the important role he played in the lives of the ancient Greeks.
⏳ Step Back in Time...
Instead of silent ruins, imagine a place filled with people. An offering burns upon the Altar of Dionysus. Priests prepare for a sacred ceremony while townspeople bring gifts and prayers to the god. Just a few steps away stands a temple celebrating an alliance with the powerful kings of Pergamon. Today, only scattered stones remain. But once, this was a place rich in ritual, symbolism, and meaning.
🍇 Dionysus – The God Who Brought People Together
Today, Dionysus is best known as the god of wine. To the ancient Greeks, however, he represented far more than that. He was the patron of joy, celebration, theatre, and music, and the festivals held in his honour were among the most important events in the life of every Greek city.
It was during these celebrations that theatrical performances, religious processions, and communal feasts took place. For a brief time, daily routines were set aside as citizens gathered to celebrate together through both religious rituals and cultural events.
It is therefore no coincidence that theatres and other artistic spaces were often located nearby. The worship of Dionysus reminds us that, for the ancient Greeks, religion, culture, and community life formed an inseparable whole.
⏳ Step Back in Time...
An offering burns upon the Altar of Dionysus. The people of Kos gather around as music fills the air and voices rise in song. In a few hours, many of them will take their seats in the theatre to watch performances dedicated to the god. For them, this is far more than entertainment. It is an essential part of their shared faith, their culture, and the life of their city.
The Altar of Dionysus and the Temple of the Attalids in Kos Town
On the opposite side of the street, directly across from Casa Romana, lie a set of modest ruins that are easy to overlook. Few visitors realise that this was once the site of the monumental Altar of Dionysus and the Temple of the Attalids. Together, these remains reveal how closely religion, politics, and civic life were intertwined in ancient Kos.