Concord Center — Uncover the Midnight Riders' Secret
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Concord Center, Massachusetts, USAConcord Center — Uncover the Midnight Riders' Secret
📍 Concord Center, Massachusetts, USA·🕐 2h – 2h30·📍 ~2.5 km
Also available as:HistoricalMysterySpy thrillerFantasy

Concord Center — Uncover the Midnight Riders' Secret

Decipher the hidden messages left by Paul Revere's Midnight Riders and Minutemen. Uncover the conspiracy that sparked the American Revolution in this historic heart.

📱 1 to 10 phones · 1 team per phone · Independent codes

Difficulty
·From age 12 years
Starting point :North Bridge, Concord, MA

In the tense night of April 18, 1775, Paul Revere and the Midnight Riders galloped through Concord Center, spreading the alarm: 'The British are coming

8
stages
~2.5 km
route
2h – 2h30
at your pace
🚶
walking

Relive the day America fired the "shot heard 'round the world" in Concord, Massachusetts, on April 19, 1775.

Step into the shoes of Paul Revere, the alarm rider of 1775, tasked with delivering crucial messages to the American militiamen. Your mission takes you through picturesque Concord Center, a Historic District in Concord, MA, where every cobblestone and facade whispers echoes of the American Revolutionary War. On your phone, augmented reality clues reveal themselves: military maps from April 19, 1775, appear on the walls of Wright's Tavern, Minutemen figures emerge in Monument Square, and engraved letters from Ralph Waldo Emerson's 'Concord Hymn' light up on historical sites. Over approximately 135 minutes of walking a 1.5 km route, no car needed, you explore the Revolutionary War Sites at the heart of this Massachusetts heritage at your own pace. More than an outdoor escape game: an interactive tour immersed in 249 years of history, with anecdotes revealed at each stop and confidential sites that classic guides overlook.

Far more than an escape game

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.

🏛️
Hidden historical gems

At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.

📜
Anecdotes & legends

Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.

🏗️
Architecture & heritage

Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.

🚶‍♀️
Immersive wandering

Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.

🎙️
Immersive audio narration

A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.

📲
Yours forever

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?

🏛️
Outdoor escape game

Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.

📱
On your smartphone

No app to download. Play directly from your browser. Guided step by step, at your own pace.

👨‍👩‍👧‍👦
Unlimited players

One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.

🎯
Augmented reality

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.

🤖
AI that helps you

Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.

🗣️
32 languages

French, English, German, Spanish, Italian + 27 other languages auto-translated by AI.

🎟️

Want to go deeper?

Places tied to your adventure — optional entries, totally up to you · per person

Orchard Houseoptional
$15. Explore the house where Louisa May Alcott wrote 'Little Women', immerse yourself in the 19th-century literary atmosphere of Concord.
Optionnel
/pers.
Walden Pond State Reservationoptional
$8 per car. Visit the place that inspired Henry David Thoreau's 'Walden', a protected natural site offering hiking trails and a beach.
Optionnel
/pers.
Concord's Colonial Inn Diningoptional
Various prices. Enjoy traditional American dishes in a historic setting dating back to 1716, with several themed dining rooms.
Optionnel
/pers.
Literary Walking Toursoptional
$20. Join a guided walking tour exploring the homes and living places of Concord's major literary figures, such as Emerson, Thoreau, and Hawthorne.
Optionnel
/pers.
Budget if you do them all / pers.~0
« By the rude bridge that arched the flood, Their flag to April’s breeze unfurled, Here once the embattled farmers stood, And fired the shot heard round the world. »
Ralph Waldo Emerson, Concord Hymn, 1837

The story that haunts this land

Your journey begins at Minute Man National Historical Park, a national park established in 1959 spanning 970 acres along Battle Road. This site, connecting Lexington to Concord, was the scene of the battle on April 19, 1775. Here in Massachusetts, you walk in the footsteps of the Minutemen who confronted the British. The Visitors Center, opened in 1974, houses artifacts from this foundational battle, attracting an average of 77,000 annual visitors. It was also in this historic setting that Ralph Waldo Emerson wrote his 'Concord Hymn' in 1837, commemorating the event.

Your route then takes you to The Old Manse, a colonial house built in 1770 by Reverend William Emerson, Ralph Waldo Emerson's father. This Georgian-style residence, with its 11 rooms over 2,300 sq m, was Nathaniel Hawthorne's home from 1842 to 1845, where he drew inspiration for his short stories. Listed on the National Register of Historic Places in 1966, it is surrounded by a garden created by Henry David Thoreau in 1842 for the Hawthornes. This site illustrates the intellectual and literary heritage of Concord, Massachusetts, closely linked to the events of the Revolution.

Cross the North Bridge, a bridge rebuilt in 1956 on its original 1760 foundations. It was here, on April 19, 1775, that the first battle of the American Revolutionary War erupted. 400 British soldiers were repelled by 500 American militiamen, marking the first armed confrontation of the Revolution. This wooden arch bridge, about 15 meters long, is a centerpiece of the Minute Man National Historical Park, established in 1959. The "shot heard 'round the world" still echoes on this crucial site for United States history.

Continue your visit to Wright's Tavern, a tavern built in 1729-1730. On April 19, 1775, it served as headquarters for British officers before the battle, and was also a meeting place for American militiamen that very morning. Named for Ephraim Hartwell and then Samuel Wright, this two-story wooden building, 18 x 12 meters, was restored in 1927 by the Colonial Dames of America and listed on the National Register of Historic Places in 1972. It embodies the fervor of Concord before the conflict, a key point of interest for understanding Massachusetts heritage.

Your adventure concludes at Monument Square, the central plaza of Concord Center, surrounded by 18th-century buildings. It was here that the Minutemen gathered on April 19, 1775, before marching to North Bridge. Daniel Chester French's Minute Man statue, erected in 1875 and 2.1 meters tall, commemorates their bravery. Bordered by the Concord Free Public Library, opened in 1873 with its 150,000 works, and the First Parish in Concord where William Emerson preached, this square is the vibrant heart of the Historic District listed in 1972. Your journey will have allowed you to grasp the essence of Concord and its foundational role in American history.

1775
The "shot heard 'round the world" at North Bridge, marking the start of the Revolution.
1774
Official formation of the Minutemen in Massachusetts, a rapid defense force.
1773
The Boston Tea Party, a major act of resistance preceding hostilities.

The Route

8 stages through the city

The gameplay: AR, camera, hidden clues

📱Search clues with your cameraRA

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.

8
original puzzles
24
min of narration
🪙 24
TripCoins granted
16
GPS waypoints

How does it work with a group?

One phone = one team. Pick the number at checkout (1 to 10).

🧍
1 phone

Solo, or a group sharing the screen. One team, one code.

👥
2-3 phones

Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.

👨‍👩‍👧‍👦
4 to 10 phones

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.
🕒No date to pick · Code valid 1 year · Play whenever you want

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

Starting point
North Bridge, Concord, MA
Directions on Google Maps
🕐
Duration
2h – 2h30
At your own pace
👥
Players
Unlimited
From age 12
📍
Distance
~2.5 km
Historic center
Accessibility
Partial
Natural paths and sidewalks
🌐
Languages
17 languages
Built-in translation

Why this route?

📜

Secret Documents

Uncover coded messages and battle plans hidden by the patriots.

⚔️

Military Strategy

Understand the tactics of the Minutemen against the British army.

🌳

Historic Landscapes

Walk through the places where the American Revolution took off.

Be the messengers of liberty!

History is in your hands.

★ Innovation 2026

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

Q01Do I need to download an app?

No, never. You get a link, you click, it plays in your browser. That's the point of a PWA: same as an app, without the hassle.

Q02Does it work offline?

GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.

Q03How long does a game take?

1 h 30 to 2 h 30 depending on your pace. The timer runs but only for the leaderboard — you play at your own tempo.

Q04What happens if I'm stuck?

You get 3 levels of hints per puzzle (increasing penalty). If truly stuck, you can skip the step (45-min penalty but you keep going).

Q05What's the age range?

From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.

Q06What if my city isn't in the catalogue?

Pre-register or contact us — we'll email you as soon as your city is live.

Q07What is augmented reality exactly?

Point your phone at the façade: a historical character appears full-screen and speaks to you in your language. At the puzzle climax, golden letters magically write themselves on the real wall — that's your answer. After each puzzle solved, a treasure chest floats in front of you. Seeing is believing.

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Your turn to play

Relive the day America fired the "shot heard 'round the world" in Concord, Massachusetts, on April 19, 1775.

12€
1 phone
23€
2 phones
33€
3 phones
42€
4 phones
50€
5 phones
56€
6 phones
62€
7 phones
68€
8 phones
74€
9 phones
80€
10 phones

1 purchase = 1 phone. Play several on the same device.

🕒No date to pick · Code valid 1 year · Play whenever you want
Get my code · 12€

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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