The story

In the shadowed alleys of Barcelona's Gothic Quarter, where ancient stones pulse with the echoes of empires, the spirit of Santa Eulàlia—patron saint and eternal root of Catalan culture—stirs from the depths of time. A young martyr of the 4th century, Eulàlia defied Roman oppressors in Barcino, enduring thirteen tortures for her unyielding faith. She is the bedrock of Catalonia’s soul: a resilient flame of identity, creativity, and defiance that has burned through centuries of oppression. From Roman persecutions to medieval inquisitions, civil wars, and Franco’s iron rule, countless forces have sought to crush this spirit, yet it grows ever stronger, like roots breaking through stone. Eulàlia’s light, fractured by tyranny but never extinguished, scatters as radiant lanterns across the Barri Gòtic, their glow beckoning seekers on a quest to trace the city’s story—from its Roman birth to its modern rebirth—and ensure its lessons endure. You are a seeker of the light. Your task is to follow the lanterns and gather pieces of her flame. At each site you visit, the past will speak — stories carved in stone, scars left on walls, symbols etched into fountains, shields, gargoyles, turtles, geese, and scales of justice. These are the Guardians of Barcelona, silent protectors who have watched the city rise, fall, and rise again. They will test you with riddles and puzzles, but if you listen closely and learn, they will share their fragment of Eulàlia’s light.

The route

Fourteen stops, 0.7 miles, one way.

From Barcelona Cathedral to Plaça de Sant Jaume. Every point on this chart comes from the quest’s own coordinates. Pick a difficulty to see what each stop asks of you.

Start Stop Hidden find Finale

Lanterns

Collect fourteen lanterns along the way.

They’re spread across the stops. Earn each one by solving what its stop asks, then bring them all to Plaça de Sant Jaume.

The light of heroesYou have earned the light of heros from the guardian angel
The light of libertyYou have earned the light of liberty from the guardian Saint George
The light of Santa MariaYou have earned the light of Santa Maria
The light of Ramon Berenguer IIIYou have earned the light of the Count of Barcelona
The light of GauiYou have earned the light of Gaudi
The light of the Cathedral's CloisterYou have earned the light of the Cathedral's Cloister from the guardian geese
The light of Plaça de Sant Felip NeriYou have earned the light of Plaça de Sant Felip Neri from its guardian patron saint
The light of LibertyYou have earned the light of liberty from the guardian gargoyle
The light of the CathedralYou have earned the light of the cathedral from the Guardian Apostles
Light of HelenYou have earned light from the guardian Helen (mother of Constantine) whos statue is just below the lantern.
The light of the CrownYou have earned the light of the Crown from the Guardian King
The light of the bridgeYou have earned the light of the bridge from the Guardian Skull
The light of justiceYou have earned the light of justice from the turtle guardian
The light of the TempleYou have earned the light of the temple from the Guardian Augustus

The finale

The Light of Eulalia

You have collected the lanterns holding the lights of Eulalia, the light of Barcelona. Stand in the center of the square (in the section with no diamonds) and offer the light.

AT PLAÇA DE SANT JAUME

Ready when you are

Play Barcelona's Light of Eulàlia in the app.

Download the quest before you go. Every stop, puzzle and map works offline.