In western Turkey, perched above a hillside of dazzling white terraces, lies Hierapolis, an ancient spa city built beside one of the most extraordinary natural wonders in the world. Below it, warm mineral-rich water has, over thousands of years, created cascading pools of gleaming white stone, the famous Cotton Castle of Pamukkale.

For the ancients, this was a sacred and healing place, where the hot springs were believed to cure the sick and where a gateway to the underworld breathed deadly vapours. Hierapolis and Pamukkale together form a rare site prized for both its human history and its natural beauty.

Table of Contents

• The Holy City Above the White Terraces
• Pamukkale: The Cotton Castle
• A Spa City of the Ancient World
• The Great Theatre
• The Temple of Apollo and the Plutonium
• The Colonnaded Street
• The Vast Necropolis
• Saint Philip and Early Christianity
• Earthquakes and Decline
• Rediscovery, UNESCO, and the Pools Today
• Getting There
• Nearby Places
• Closing Thoughts

The Holy City Above the White Terraces

Hierapolis, whose name means sacred city, was founded in Greek times and flourished under Rome. It grew up around the hot springs that bubble from the ground, which gave the place its special, sacred character.

The city became wealthy and cosmopolitan, filled with temples, baths, a theatre and a huge cemetery. Its ruins spread across the plateau directly above the white slopes of Pamukkale.

Pamukkale: The Cotton Castle

The natural wonder beneath the city is Pamukkale, meaning cotton castle in Turkish. Warm water rich in calcium flows down the hillside and, as the mineral settles, has built up a series of brilliant white terraces and pools over the ages.

The effect is like a frozen cascade of snow or cotton, glittering in the sun. These terraces are one of the most photographed natural sights in the world, and their beauty first drew people to settle here.

A Spa City of the Ancient World

Hierapolis was, in effect, an ancient spa resort. People came from far away to bathe in its warm, mineral-rich waters, believed to heal a range of ailments. The city grew rich serving these visitors.

At its centre is a pool, sometimes called Cleopatra’s Pool, where warm water still bubbles up among fallen ancient marble columns. Visitors can swim there today, among the very stones of the ancient city.

The Great Theatre

One of the finest monuments of Hierapolis is its grand Roman theatre, built into the hillside and able to seat thousands. Its elaborately decorated stage building survives in remarkable condition.

Restored in recent times, the theatre commands a magnificent view over the ruins and the white terraces below. It is among the best-preserved theatres in Turkey.

The Temple of Apollo and the Plutonium

Hierapolis was sacred to Apollo, and his temple stood at the heart of the city. Beside it lay one of the most mysterious spots in the ancient world: the Plutonium, a cave regarded as a gateway to the underworld.

Deadly carbon dioxide gas seeping from the ground here killed birds and animals, which ancient people took as proof of the god of the dead. Priests were said to lead sacrificial animals to their doom at its mouth.

The Colonnaded Street

Running through the city was a long colonnaded main street, lined with shops, gateways and public buildings. It formed the spine of Hierapolis, connecting its monumental gates at either end.

Along and around it lay baths, temples, an agora and other public spaces, all serving the many residents and visitors who came to the sacred spa city.

The Vast Necropolis

One of the most striking features of Hierapolis is its enormous necropolis, one of the largest and best-preserved cemeteries of the ancient world. It contains many hundreds of tombs of every kind.

Because so many people came to Hierapolis hoping the waters would cure them, many also died and were buried here. The great variety of tombs, from simple graves to grand mausoleums, reveals a cross-section of ancient society.

Saint Philip and Early Christianity

Hierapolis became an important centre of early Christianity. Tradition holds that the apostle Philip was martyred here, and a large octagonal building, the Martyrion, was raised in his honour.

Pilgrims came to venerate the saint, and the city was home to a significant Christian community. The Martyrion and other churches mark this chapter of the city’s long religious history.

Earthquakes and Decline

Hierapolis lay in an earthquake-prone region, and repeated quakes damaged the city over the centuries, toppling its buildings. Each time it was rebuilt, but eventually the damage, together with changing times, led to its decline.

The city was gradually abandoned, and its monuments fell into ruin, slowly merging with the white landscape of the terraces below.

Rediscovery, UNESCO, and the Pools Today

Excavated and studied by archaeologists, Hierapolis and Pamukkale were together inscribed on the UNESCO World Heritage List in 1988, recognised for both their cultural and natural value.

In modern times the terraces suffered from hotels and unrestricted access, but careful management has since helped restore their brilliant white beauty. Today visitors walk barefoot on the terraces and explore the ancient city above.

Getting There

Hierapolis and Pamukkale lie in Denizli Province in western Turkey. The nearest city is Denizli, which has an airport with flights from Istanbul, and the site is a short drive from there.

Many visitors come on tours or by car, often combined with the ruins of Aphrodisias nearby. Entry to the site includes both the ancient city and the famous travertine terraces.

Coordinates: 37.9244, 29.1283 — open Hierapolis-Pamukkale in Google Maps.

Nearby Places

• Aphrodisias — the beautiful marble city of Aphrodite nearby, often visited together with Pamukkale.
• Ephesus — the great ancient metropolis of the same region, another highlight of western Turkey.
• Epidaurus — another famous ancient healing centre, where the sick sought cures as they did at Hierapolis.

Closing Thoughts

Hierapolis and Pamukkale are a marriage of human and natural wonder: a sacred spa city of theatre, temples and tombs, set above a hillside of dazzling white terraces built by the mineral springs over the ages.

Where ancient visitors once bathed for healing and feared a gateway to the underworld, travellers today still wade in the warm pools and swim among fallen marble columns. Few places on earth so completely blend history and natural beauty.