The Market Gardeners of the Cathedral
Uncover the mystery of the sacrificed artichoke field
📱 1 to 10 phones · 1 team per phone · Independent codes
When market gardeners gave up their most fertile land to raise the highest cathedral to God
The Market Gardeners of the Cathedral
You are an investigator of ancient enigmas, drawn to Amiens to probe the enduring whispers of a 13th-century sacrifice.
Your task is to follow the traces of the hortillons,
The hortillons — guardians of an architectural secret
« Fluctuat nec mergitur »— Devise latine gravée sur les armoiries d'Amiens
The Legend of the Hortillonnages
The Hortillonnages of Amiens form a vast network of marshes developed from the Middle Ages, probably in the 12th century. These plots of land surrounded by canals called rieux were cultivated by the hortillons, a community of market gardeners who supplied the city with early produce. By the 18th century, they formed a well-organized society with its own rules and traditions.
Local legend tells that the famous Notre-Dame Cathedral of Amiens, whose construction began in 1220, was built on an artichoke field given by the market gardeners. This voluntary sacrifice allegedly enabled the erection of France's largest Gothic edifice, symbolizing the hortillons' generosity toward their urban community.
A game, a guided tour and a heritage guide — all in one
You're not just buying an escape game. You're carrying a living guide — historical anecdotes, forgotten legends, key monuments, hidden architecture — unfolding as you go.
At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.
Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.
Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.
Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.
A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.
Keep access to the guide & game for 1 year. Come back any time, share it with friends.
« You will not leave this city the way you entered it. »
How does it work?
Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.
No app to download. Play directly from your browser. Guided step by step, at your own pace.
One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.
Point your phone at the façade: a historical character appears and speaks to you in your language. Golden letters magically write themselves on the wall to reveal the puzzle answer.
Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.
French, English, German, Spanish, Italian + 27 other languages auto-translated by AI.
The game downloads to your phone on start. Once the "✓ Downloaded" indicator appears, everything works without data — narration, AR, GPS and puzzles. Perfect abroad without a data plan.
Want to go deeper?
Places tied to your adventure — optional entries, totally up to you · per person
The Route
8 stages through the city
The gameplay: AR, camera, hidden clues
At each stop, open your phone camera: an augmented reality character appears on the façade and speaks your language. Hunt the clue — it materializes as golden letters on the real wall or floats in front of you. When you find it, the phone vibrates, an AR chest opens and reveals your answer fragment. 8 stops, 8 clues to find with the camera, 1 final code.
The stops on your route are a surprise. You'll discover them one by one, guided by your phone, starting from the meeting point.
How does it work with a group?
One phone = one team. Pick the number at checkout (1 to 10).
Solo, or a group sharing the screen. One team, one code.
Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.
Friends, bachelor/bachelorette, small office outing — each their own code, each plays at their own pace. Tiered pricing then €6 flat per phone from the 6th.
- ✓All codes are independent — play at the same time OR separately, each team advances at its own pace.
- ✓Leaderboard between your teams + global game leaderboard — each score appears in the public ranking.
- ✓More than 10 phones or need a personalized quest? Discover custom tours.
Ready to live this adventure?
Get my code · 12€No calendar booking. Code sent immediately by email.
🔒 Secure payment · Code in 5 min · Free cancellation
Practical info
Why this route?
Navigation through rieux
Explore the authentic channels of the Hortillonnages where medieval market gardeners' boats navigated
Construction secrets
Discover the hidden links between hortillon agriculture and the construction of the largest Gothic cathedral
Medieval botany
Dive into the world of 12th-century market gardening and its ancestral techniques
More than an outdoor escape game
An interactive visit immersed in 800 years of history, with anecdotes revealed at each stop and hidden sites that classic guides forget.
9 features nobody else has
OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.
AR treasure chest
A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.
AR narrator character
Point your phone at the façade: a knight, witch, monk, sailor, detective or ghost appears full-screen and speaks to you in your language with their dedicated ElevenLabs voice (each character has their own unique voice) — your living guide.
Magic golden letters
At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.
Written + audio narration
Every puzzle available as text AND voice-over: read at your own pace or listen eyes-free while walking. Great in groups and for accessibility.
360° radar + vibration
A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.
Heritage storytelling
Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.
Progressive AI hints
3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.
AR selfie memento
At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.
Zero app to install
PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.
Frequently asked questions
Q01The Market Gardeners of the Cathedral — is it a guided trail or a free-form hunt?
It's a semi-guided trail: GPS points you to the next stop, but you find the camera clue and solve the puzzle yourself. No app to install, everything runs in your browser.
Q02Can we split The Market Gardeners of the Cathedral across two days?
Yes — your code stays active and progress is saved. You can start Saturday afternoon, finish Sunday morning. Some players actually prefer this format to make the most of a full weekend on site.
Q03Is The Market Gardeners of the Cathedral suitable for a challenge-seeking teen?
Absolutely. The puzzles aren't obvious — a curious teen will sweat just enough to be proud of cracking them. Progressive hints prevent frustration: if stuck, unlock hint level 1, then 2, then 3.
Q04What's the best time to start?
Morning between 10 and 11, or early afternoon around 2 PM, is ideal. You still have daylight ahead, Hortillonnages and historic center of Amiens, France is less crowded, and the light is better for camera clues.
Avis des aventuriers
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Your turn to play
Download the app, scan the starting QR code, and let the hortillons guide you to their best-kept secret.
1 purchase = 1 phone. Play several on the same device.
No calendar booking. Code sent immediately by email.
🔒Secure payment · Code in 5 min · Free cancellation
🪙+24 TripCoins granted with your booking
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