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Decipher the hidden messages left by the Silent Sentinels and expose the suffragettes' secret coordination network that challenged a president and changed democracy.
📱 1 to 10 phones · 1 team per phone · Independent codes
March 1913: While President Wilson's inaugural parade marches down Pennsylvania Avenue, a parallel network of women operatives executes a daring counter-strategy
You are an intrepid archivist, commissioned on November 2, 1897, the inauguration day of the Library of Congress.
Your mission: decipher the hidden messages of the suffrag
Dive into the heart of Washington DC, following the footsteps of the 'Silent Sentinels', a clandestine network that defied conventions to forge the future of American democracy.
Your quest begins in front of the Library of Congress, the Thomas Jefferson Building, inaugurated in 1897. This edifice, built between 1888 and 1897, houses the Gutenberg Bible, a printing treasure dating back to 1455. It is here, at the heart of this knowledge, that the first clues are unveiled. The Main Reading Room, usually accessible via a scheduled visit, offers you a first enigma, connected to the underground networks linking the building to the Capitol. This walking tour invites you to a deep exploration of American political heritage in Washington DC.
Continue your investigation towards the Supreme Court of the United States, one of the three main sites on Capitol Hill. This place, where historical decisions have shaped the nation, is a central point of your outdoor escape game. Located in the immediate vicinity of the Capitol, the Supreme Court is a key stage of this thematic Washington circuit. You will find hidden symbols, engraved dates, allusions to the struggles for justice that resonate with the city's motto. The 60-90 minute tour, often documented by guided visits, reveals only a fraction of the secrets you are about to discover in Washington.
The Belmont-Paul Women's Equality National Monument is your next stop. Dedicated to women's equality, this national monument on Capitol Hill is a living testament to the history of women's rights in the United States. It is accessible on foot from the Library of Congress, within a 1.5 km radius. Here, figures of suffragettes like Susan B. Anthony come to life in augmented reality, guiding you through challenges and victories. This site, an integral part of American political heritage, is a pillar of your exploration of the Silent Sentinels in the capital, Washington.
Your itinerary then leads you to Union Station, a major historic train station in the Capitol Hill district, whose 19th-century architecture is inspired by the Beaux-Arts style. It is a starting point for many tours and an essential thoroughfare for activists of the era. You cross it via Massachusetts Avenue to access Lower Senate Park, a green space between Union Station and the Capitol, perfect for observing Washington's political life. Although Union Station is not directly linked to the Silent Sentinels, it was a crossroads where ideas and activists met, symbolizing the circulation of messages and hopes for equality. This place prepares you for the discovery of major documents at the National Archives Museum.
On your way to the National Archives Museum, repository of major historical documents of the United States, you cross Lafayette Square, a major historic square in Washington's political district, near the National Mall. This museum, located on the National Mall, is a crucial step in your journey, revealing hidden archives. Every site on this thematic circuit of Washington, from the United States Capitol, seat of the American Congress, to the Belmont-Paul Women's Equality National Monument, contributes to the richness of your discovery. This GPS treasure hunt offers you a total immersion in the history of Washington, an interactive visit that will remain etched in your memory, well beyond the ~105 minutes of the game.
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. »
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.
Places tied to your adventure — optional entries, totally up to you · per person
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.
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.
Ready to live this adventure?
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Explore the history of an essential fight for equality.
Discover the audacious strategies of activists.
Women's voices resonated. Discover how.
A legacy of courage and perseverance.
OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.
A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.
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.
At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.
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.
A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.
Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.
3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.
At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.
PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.
Outdoor escape game format: no physical locks, no actor, no fixed time slot. You start when you want, progress through Washington D.C. – Capitol Hill with your phone, and the city itself is the set. More immersive on local history, more flexible in pace.
Plan 1 h 30 to 2 h 30 depending on your pace. Some finish in 1 h 10, others take 3 h in slow-mode. No pressure: the clock only counts for the leaderboard, you play at your tempo.
Yes — it's actually one of our main use cases. Outdoor escape game format, teams of 4 to 6, live ranking possible between groups. For companies above 12 participants, contact us: we can issue linked codes.
Spring and autumn are the best seasons: mild temperatures, fewer tourists, gorgeous light. Summer is also great but go for early morning before 11 or late afternoon. Winter is perfectly playable, especially in southern cities — Washington D.C. – Capitol Hill often feels more authentic then.
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Dive into the heart of Washington DC, following the footsteps of the 'Silent Sentinels', a clandestine network that defied conventions to forge the future of American democracy.
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
More ideas for self-guided walking tours, scavenger hunts & city quests in the same city

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Decipher the hidden codes in L'Enfant's 1791 plan to uncover why George Washington fired him and reveal the secret features erased from the capital's blueprint.

Uncover the conspiracy behind Lincoln's assassination at Ford's Theatre. Follow hidden clues through Civil War-era Washington to expose the plot that changed a nation.

Decipher the hidden network behind the 1972 break-in that toppled a presidency. Follow the trail of conspirators, wiretaps, and cover-ups across the scandal's ground zero.
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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
Gratuit. Explorez la Rotonde historique et les chambres du Congrès américain avec un guide expert, un incontournable du patrimoine politique de Washington DC.

Gratuit. Admirez la Déclaration d'Indépendance et la Constitution américaine sur le National Mall, à proximité du Jardin Botanique des États-Unis.
8-12€. Goûtez à la saucisse fumée emblématique de Washington DC, souvent servie avec du chili, un classique local depuis les années 1950.
Gratuit. Détendez-vous dans cette oasis de verdure sur le National Mall, un havre de paix à quelques pas de l'agitation politique de Washington.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.