Hagia Sophia Basilica at Dawn
Hagia Sophia, the Thousand-Year-Old Basilica

Explore the City. Unlock History.

A site to understand, explore, and walk in the footsteps of Constantinople, capital of the Eastern Roman Empire.

🧭 Explore the Remains


The walls, the churches, the columns… Constantinople still lives in the streets of Istanbul.
Follow our selection of iconic places to walk in the footsteps of the imperial city.



📜 Delve into History


1453. For 53 days, the Ottoman army encircled the thousand-year-old city.

Here are the key moments that marked the end of the Byzantine Empire.




⚔️ Play the Siege of 1453


Choose your side. Play. Win.

Sultan’s Spy, lead him to victory. Roman Soldier, defend the Emperor.




Join the Adventure

Constantinople 1453

“Constantinople is reborn before your eyes… but the adventure has only just begun.
Join us to bring the mobile application Constantinople 1453 to life and to revive history.”