Hagia Triada (Holy Trinity Cathedral), Piraeus

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Hagia Triada (Holy Trinity Cathedral), Piraeus

Hagia Triada (Holy Trinity Cathedral), Piraeus (must see)

The Holy Trinity Cathedral is one of the most striking Greek Orthodox churches in the city. Serving as the cathedral and metropolitan seat of the Holy Metropolis of Piraeus, it is both a religious and architectural landmark. The original church was built in 1839, just after Greece gained independence from the Ottoman Empire, and was completed by 1845.

However, during World War II, the cathedral was completely destroyed in the Allied bombing of Piraeus on January 11, 1944, tragically taking the lives of people who had sought refuge within. In the same year, a makeshift church was erected to continue serving the parish, standing for twelve years until the construction of the new cathedral began. The current structure, built in Byzantine style, was completed in 1979, featuring intricate mosaics, domes, and religious iconography that make it a must-visit attraction.

The Holy Trinity Cathedral is an architectural masterpiece, covering 835 square meters and accommodating 3,100 people. It is a three-aisled basilica, with the central aisle dedicated to the Holy Trinity, the right aisle to the Apostles Peter and Paul, and the left aisle to Saint Skepi. Additionally, two chapels—one dedicated to Saint Nectarius and another to Saints Cyril and Methodius—are incorporated into the structure. Notably, a section of the ancient Long Walls of Athens is housed within the chapel of Saints Cyril and Methodius, adding historical depth to the cathedral.

Its imposing dome, supported by eight large arches, contains 40 windows that illuminate the interior, ensuring the Christ Pantocrator painting is visible from every corner of the church. The cathedral's gold-adorned murals, inspired by both the Macedonian and Cretan Schools of Byzantine art, were initially painted by Stephanos Almaliotis and later continued by his student, Anargyros Liakos.

The exterior of the cathedral is just as remarkable, with forged brass doors and an ornate marble iconostasis crafted by the Doukas brothers. The wood-carved iconostasis doors, made by Theophilos Nomikos, add to the intricate detailing. Outside, in the church’s courtyard, stands a statue of Constantine XI Palaiologos, the last emperor of the Byzantine Empire, symbolizing the deep connection between Greek Orthodox faith and Byzantine heritage.

Want to visit this sight? Check out these Self-Guided Walking Tours in Piraeus. Alternatively, you can download the mobile app "911: Walks in 1K+ Cities" from Apple App Store or Google Play Store. The app turns your mobile device to a personal tour guide and it works offline, so no data plan is needed when traveling abroad.

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Hagia Triada (Holy Trinity Cathedral) on Map

Sight Name: Hagia Triada (Holy Trinity Cathedral)
Sight Location: Piraeus, Greece (See walking tours in Piraeus)
Sight Type: Religious
Guide(s) Containing This Sight:

Walking Tours in Piraeus, Greece

Create Your Own Walk in Piraeus

Create Your Own Walk in Piraeus

Creating your own self-guided walk in Piraeus is easy and fun. Choose the city attractions that you want to see and a walk route map will be created just for you. You can even set your hotel as the start point of the walk.
Piraeus Introduction Walking Tour

Piraeus Introduction Walking Tour

When most people hear “Piraeus,” they picture the buzzing ferry terminals, the gateway to Greece’s famous islands. But for the locals, it’s so much more than a jumping-off point. This port—Greece’s largest—has been at the center of maritime life for centuries. Its name traces back to a phrase meaning “place over the passage” or “ferryman.” It’s the place where Athens and...  view more

Tour Duration: 2 Hour(s)
Travel Distance: 3.5 Km or 2.2 Miles