A Sanctuary of Faith and Refuge

Saint Mercurius Underground City – Travel Guide

Discover the unique subterranean church and ancient refuge
of early Christians in the village of Saratlı.

Step Into the Hidden History of Saratlı

Saint Mercurius Underground City, located in the village of Saratlı, is a remarkable example of Cappadocia's subterranean heritage. While most underground cities were primarily defensive, Saint Mercurius stands out for its significant spiritual core, featuring a massive rock-cut church and burial chambers.

Used extensively during the 2nd and 3rd centuries AD as a refuge from Roman persecution, the city was named after Saint Mercurius, a Roman soldier who converted to Christianity and was later martyred. The site offers a glimpse into how faith and survival were intertwined in the deep volcanic soft stone of the region.

The complex is sprawling and multi-layered, containing all the necessities for long-term habitation: kitchens, stables, water wells, and advanced ventilation shafts. It provides a more intimate and quiet experience compared to the larger, busier underground cities.

Subterranean Church

A rare, three-nave underground cathedral used for worship and secret gatherings.

Ancient Necropolis

Discover multiple burial chambers and gravesites carved directly into the floor and walls.

Survival Architecture

Explore living quarters, massive millstone doors, and communal kitchens used during sieges.

Quiet Discovery

Located away from the main tourist trail, offering a peaceful and authentic exploration.

Plan Your Visit

St. Mercurius – Quick Facts

📍

Location

Situated in Saratlı Village, approximately 25km from Aksaray on the way to Cappadocia.

⛪

Famous For

Its large underground church and its connection to the martyr Saint Mercurius.

⏱

Visit Duration

45 to 60 minutes for a comprehensive tour of the accessible levels.

🛡️

Main Experience

Exploring early Christian history, ancient engineering, and spiritual archaeology.

Centuries of Secrecy

History & Background

The Saint Mercurius Underground City was first used as a settlement during the Roman Empire, specifically by early Christians fleeing the pagan authorities. Because the town of Saratlı sat on a strategic trade route, its inhabitants needed a way to disappear quickly when danger approached.

The site is named after Saint Mercurius (Agios Mercurios), who was a high-ranking officer in the Roman army. After receiving a vision of an angel, he declared his Christian faith to the Emperor Decius and was subsequently tortured and beheaded in Caesarea (modern-day Kayseri). His legacy inspired the local communities to carve this sanctuary in his honor.

Archaeologists have uncovered seven levels within the city, though only a few are currently open to the public. Unlike the "fortress" feel of Derinkuyu, Saint Mercurius feels more like a lived-in village, with clear distinctions between the secular living areas and the sacred worship spaces.

One of the most fascinating aspects of the site is the Necropolis area. The presence of children's graves alongside adults within the city walls suggests that during times of war, the community was prepared to stay underground for months, performing all aspects of life—including burials—within the safety of the earth.

What to See in Saint Mercurius

The Cathedral

A remarkably large, rock-cut church with an altar and baptismal areas.

Rolling Millstone Doors

Massive circular stones that sealed the city from the inside to block invaders.

Communal Kitchens

Tandoor-style ovens and storage pits for grain and oil used by the residents.

The Deep Well

A vertical shaft that provided fresh water and acted as a ventilation chimney.

Animal Stables

Carved mangers and tethering holes for livestock, located near the entrance levels.

Burial Niches

Sacred spaces where early Christians were laid to rest within the safety of the city.

Plan Your Visit

Visitor Information

Saint Mercurius is an excellent stop for travelers driving from Istanbul or Ankara toward the heart of Cappadocia, as it provides a less crowded introduction to underground living.

Entrance

There is a small entrance fee. The site is generally open every day from 08:30 to 17:30.

How to Get There

Located in Saratlı Village. It is best reached by private car or as part of a custom tour route focusing on the Ihlara Valley direction.

Difficulty

The tunnels here are generally wider and higher than Derinkuyu, making it a better choice for those who are slightly claustrophobic.

Proximity

It is very close to the Saratlı Kırkgöz Underground City, allowing you to visit two unique sites in one short stop.

FAQ

Frequently Asked Questions

Who was Saint Mercurius?

He was a 3rd-century saint and martyr. According to tradition, he was a Roman soldier who refused to sacrifice to pagan gods, leading to his sainthood in both the Orthodox and Catholic churches.

Is it suitable for children?

Yes, the tunnels are relatively easy to navigate, and children often find the "secret city" aspect very exciting. Standard safety precautions for uneven floors apply.

Do I need a guide?

While you can explore on your own, a guide is recommended to explain the complex ventilation systems and the historical significance of the church and burial rooms.

Ready to Explore Cappadocia?

Tell us your travel dates, group size, and interests. We’ll help you arrange the perfect visit to Saint Mercurius Underground City, hot air balloon flights, or a fully customized Cappadocia itinerary.

Contact on WhatsApp Email Us

WhatsApp Us for Cappadocia Planning