Gospić — Echo of Tesla's Lost Secret
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Gospić and Smiljan, LikaGospić — Echo of Tesla's Lost Secret
📍 Gospić and Smiljan, Lika·🕐 2h – 2h30·📍 ~3 km
Also available as:HistoricalFantasySupernaturalMystery

Gospić — Echo of Tesla's Lost Secret

Uncover the hidden code in Tesla's destroyed monument and decode the genius's final invention before a dark force silences it forever. Solve the wartime mystery in Gospić's heart.

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

Difficulty
·From age 12 years
Starting point :Stjepan Radić Square, Gospić

In the war-torn streets of Gospić, Nikola Tesla's majestic statue by Frano Kršinić stood as a beacon of genius until 1991, when it was obliterated in a brutal bombing

8
stages
~3 km
route
2h – 2h30
at your pace
🚶
walking

Gospić — Echo of Tesla's Lost Secret

🎭Your Mission

You are Đuka Tesla, Nikola Tesla's visionary mother, in Gospić, 1856.

You already see your son as a "great man, a man of light." Your

Dive into the heart of Gospić, Lika, to unravel the forgotten secret of Nikola Tesla, a genius whose echo still resonates in the streets of his homeland.

The story that haunts this land

Your quest begins at Trg Stjepana Radića, the central square of Gospić. This is where the Nikola Tesla monument stands, a 1.2-ton, 3-meter-high bronze, the first of its kind in Croatia. Every year, from July 8 to 10, this square comes alive during the 'Tesla – Power of Lights' event, celebrating Tesla's birthday. In 2023, it marked his 167th. Observe the details of this statue: it contains the first keys to unlock the inventor's secrets, whose ideas began to germinate in this very Lika town.

A short walk from the main square, Gimnazija Gospić, a high school located in the historic district, was a crucial place of learning. Although Nikola Tesla did not study there directly, this key educational building represents the intellectual ferment of Gospić during his youth. Its walls have seen generations of bright minds, and it was in this atmosphere that the ideas that would later transform the world developed. Look for hidden symbols on its facade, discreet clues left by a brilliant mind.

Your journey then takes you to Most Novčica, a bridge crossing the Novčica River, essential to the 1.5 km pedestrian route in central Gospić. This bridge, a local architectural element, connects the central areas of the city, symbolizing the connections and flows that Tesla would later master in his work on alternating current. Under the arch of this bridge, encrypted messages, linked to young Nikola's early engineering dreams, await decryption, revealing the power of the natural forces that inspired him.

Continue towards Crkva Navještenja Blažene Djevice Marije, the Church of the Annunciation of the Blessed Virgin Mary, the main parish church of Gospić. Located in the heart of the city center, within walking distance of Trg Stjepana Radića, this historic Lika religious building is integrated into the old urban fabric. The bell towers and stained-glass windows of this church, silent witnesses to Gospić's history, may well hide mathematical symbols or stellar coordinates, as Tesla was also a man of faith and science, seeking to understand the universe.

Finally, your exploration will lead you to Vidikovac Cvituša, a viewpoint accessible on foot from the center, offering a panoramic view of Gospić and its surroundings. This natural observation point, linked to the landscapes of Lika, is close to the Tesla sites. From here, you can contemplate the expanse of the territory where Nikola Tesla was born and grew up. Look up at the horizon, for it is here that the last fragment of the lost secret will be revealed, connecting the stars to earthly inventions. Your thematic circuit in Gospić will have allowed you to unravel the mystery of his genius, from Lika to the Nikola Tesla Memorial Center in Smiljan, just 7 km from Gospić, his birthplace on July 10, 1856, and the center of the 'Tesla Power of Lights' event.

1856
Birth of Nikola Tesla in Smiljan, the beginning of an extraordinary life.
1861
Beginning of primary school in Smiljan, where his first observations took shape.
1870
Tesla leaves Gospić for Karlovac, marking the end of his childhood in Lika.
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.

📵
Playable offline

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

Nikola Tesla Memorial Center, Smiljanoptional
€8. Explore Nikola Tesla's birthplace 7 km from Gospić, and discover his revolutionary inventions in this museum dedicated to his genius, open daily except Mondays.
Optionnel
/pers.
Lika Museum, Gospićoptional
€3. Immerse yourself in the history and culture of the Lika region, with collections ranging from archaeology to ethnography, offering insight into local heritage.
Optionnel
/pers.
Lika Cheese Tastingoptional
Variable price. Taste the famous Škripavac cheese, a local specialty from Lika, often offered in farms and markets in Gospić.
Optionnel
/pers.
Hiking in Sjeverni Velebit National Parkoptional
Admission fee. Explore the karst landscapes and biodiversity of this national park, a short drive from Gospić, ideal for nature lovers.
Optionnel
/pers.
Budget if you do them all / pers.~0

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€

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Practical info

Starting point
Stjepan Radić Square, Gospić
Directions on Google Maps
🕐
Duration
2h – 2h30
At your own pace
👥
Players
Unlimited
From age 12
📍
Distance
~3 km
Gospić and Smiljan (vehicle transfer recommended)
Accessibility
Full
Mostly flat route
🌐
Languages
17 languages
Built-in translation

Why this route?

🔬

Observation of Laws

Sharpen your observation skills to unravel nature's mysteries, just like young Tesla.

Electrical Innovation

Seek out the sparks of genius that led to the greatest discoveries in electricity.

🏞️

Inspiring Landscapes

Let the landscapes of Lika, which nurtured Tesla's boundless imagination, guide you.

Unlock the nascent genius.

Following the footsteps of young Nikola Tesla.

★ 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

Q01Gospić — Echo of Tesla's Lost Secret — 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.

Q02How far do you walk in Gospić and Smiljan, Lika?

Usually 2 to 4 km of total walking, within 1.5 km as the crow flies from the start point. The route is designed to be walkable at a relaxed pace, no public transport needed.

Q03Can we do Gospić — Echo of Tesla's Lost Secret as a family with kids?

Yes, from age 6 with an adult reading puzzles aloud, and from age 12 on their own. Kids love the "find the camera clue" part — it's very visual, gets them genuinely involved.

Q04Do we need 4G data to play?

Intermittent 4G is plenty. Maps are cached at startup. Narration and clues load per stop, so a so-so signal between stops is fine. GPS itself uses no data.

Avis des aventuriers

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Your turn to play

Dive into the heart of Gospić, Lika, to unravel the forgotten secret of Nikola Tesla, a genius whose echo still resonates in the streets of his homeland.

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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