Created by Pranav Jaju · AI-assisted content
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The Secrets of Strasbourg

Where France and Germany Wrote History Together

On an island in the River Ill, a city has been fought over for centuries. French and German, Catholic and Protestant, medieval and modern — Strasbourg holds all these contradictions at once.

Its pink sandstone cathedral was once the tallest building on Earth. Gutenberg invented the printing press here. Today it hosts the European Parliament — a symbol of the peace that two warring nations finally chose. Your mission: uncover its secrets, one riddle at a time.

10
Stops
~2h
Journey
10
Riddles

How to Play

  1. Tap a stop to read its story
  2. Solve the riddle — tap your answer
  3. The truth (+ hidden history) is revealed!
  4. Tap the 📍 address to navigate via Google Maps
The Age of Builders
A Mountain of Pink Stone

For 227 years, this was the tallest building on Earth. Built from Vosges sandstone, it glows red at sunset.

Strasbourg Cathedral
Gothic · 1015–1439
You stand before 142 metres of pink sandstone ambition. Construction began in 1015 as a Romanesque church, but Gothic fever seized the builders. Architect Erwin von Steinbach took over in 1277 and pushed the west facade to dizzying heights. When the spire was completed in 1439, it surpassed everything humans had ever built. It held the record for 227 years — until 1874.
🧩 Riddle
Strasbourg Cathedral was the world’s tallest building for over two centuries. How tall is its spire?
💡 Need a hint?
Taller than the Statue of Liberty, shorter than the Eiffel Tower...
🎉 The Answer
B. 142 metres
At 142 metres, the cathedral was the world’s tallest building from 1647 to 1874. Its astronomical clock, with a mechanism from 1842, features an apostle parade every day at 12:30pm.
The Merchant’s Age
A House That Tells Stories in Wood

Every carved panel on this facade is a sermon in timber — saints, warriors, virtues, and vices.

🏠
Maison Kammerzell
Late Gothic · 1427–1589
The stone ground floor dates to 1467. But it was cheese merchant Martin Braun who, in 1589, added three corbelled timber storeys covered in 75 carved window panels. Biblical figures, mythological heroes, zodiac signs — the facade is a Renaissance encyclopedia frozen in oak. Named after its 19th-century owner, grocer Philippe Kammerzell, it is the finest half-timbered house in Strasbourg.
🧩 Riddle
The carved timber upper floors were added by a merchant in 1589. What did he trade?
💡 Need a hint?
A dairy product that pairs wonderfully with Alsatian wine...
🎉 The Answer
B. Cheese
Martin Braun was a cheese merchant. Inside, artist Léo Schnug painted lavish frescoes in 1905. Today the building houses a Michelin-recognized restaurant.
The Age of Princes
Where Cardinals Lived Like Kings

The prince-bishops of Strasbourg wanted a palace worthy of Versailles. They nearly got one.

🎨
Palais Rohan
Baroque · 1732–1742
Cardinal Armand de Rohan commissioned architect Robert de Cotte — Louis XIV’s own architect — to build this riverside masterpiece. The result: a Baroque jewel with gilded salons, ceremonial halls, and a terrace overlooking the Ill. Napoleon, Louis XV, and Marie Antoinette all slept here. Today it houses three museums under one roof.
🧩 Riddle
Which French queen stayed at the Palais Rohan on her journey to Paris in 1770?
💡 Need a hint?
An Austrian archduchess heading to a tragic fate at Versailles...
🎉 The Answer
B. Marie Antoinette
Marie Antoinette stayed here aged 14 on her way to marry the future Louis XVI. The palace now contains an Archaeological Museum, Museum of Fine Arts, and Museum of Decorative Arts.
The Print Revolution
Where the World Learned to Read

Before Gutenberg moved to Mainz and changed history, he spent a decade in Strasbourg perfecting his invention.

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Place Gutenberg
Renaissance · 1439–1444
From 1434 to 1444, Johannes Gutenberg lived and worked in Strasbourg, experimenting with movable metal type. It was here, in workshops along the Ill, that he made his first attempts at printing. The bronze statue by David d’Angers, erected in 1840, shows him holding a page of Scripture: “Et la lumière fut” — And there was light.
🧩 Riddle
Gutenberg lived in Strasbourg for about a decade. What was he perfecting here?
💡 Need a hint?
Something that made books available to the masses for the first time...
🎉 The Answer
B. Movable type printing
Gutenberg’s movable type printing press revolutionized civilization. The statue was erected in 1840 for the 400th anniversary. The square was the political center of medieval Strasbourg.
The Reformation
The Protestant Cathedral

When Strasbourg embraced the Reformation in 1524, this church became the heart of the new faith.

Église Saint-Thomas
Gothic · 1196–1521
The foundations were laid in 1196 over a 6th-century chapel. But Saint-Thomas’s true moment came in 1524, when pastor Martin Bucer converted it to Protestantism. It is the only hall church in Alsace with five naves of equal height. Inside: the stunning mausoleum of Maréchal de Saxe by Jean-Baptiste Pigalle, and a celebrated Silbermann organ once played by Mozart.
🧩 Riddle
This church houses a famous organ built by a legendary Alsatian organ maker. What is his name?
💡 Need a hint?
His surname means ‘silver man’ in German...
🎉 The Answer
B. Silbermann
Andreas Silbermann built the organ in 1741. A young Mozart played it in 1778. The church also holds the only Pigalle mausoleum in France outside Paris.
The Workers’ Quarter
Where Tanners Dyed the River

Half-timbered houses lean over canals where tanners, millers, and fishermen once lived and worked.

🏡
La Petite France
Medieval · 16th–17th Century
The Ill River splits into five channels here, creating a maze of canals and cobblestone lanes. In the Middle Ages, tanners stretched hides on the open-air lofts of these timber-frame houses. The name “Petite France” has nothing romantic about it — it comes from a 1503 hospice for soldiers with syphilis, called the “French disease.” UNESCO listed the entire district in 1988.
🧩 Riddle
The name ‘Petite France’ doesn’t honor France. It actually refers to what?
💡 Need a hint?
A disease that soldiers brought back from Italian wars...
🎉 The Answer
B. A syphilis hospice
The hospice was founded in 1503 for soldiers with syphilis. The population called it “Zum Französel” (Little France). By 1795, the entire district inherited the name.
The Fortified City
Bridges, Towers, and a Dam That Floods the Enemy

Strasbourg’s medieval defenses could drown an invading army by flooding the surrounding plains.

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Ponts Couverts & Barrage Vauban
Medieval & Baroque · 1230–1690
Three bridges, four towers, built starting in 1230. The wooden roofs that gave them their name were removed in 1784, but the name stuck. Just upstream, the Barrage Vauban (1690) was pure military genius: close the sluice gates, and the entire western approach floods. Climb to the Vauban’s rooftop terrace for the finest panorama in Strasbourg.
🧩 Riddle
The Barrage Vauban had a devastating defensive trick. What could it do?
💡 Need a hint?
Think water — lots of it, aimed at attacking armies...
🎉 The Answer
B. Flood the plains
By closing the sluice gates, defenders could flood the entire western plain, making it impassable. The Ponts Couverts have been a Monument historique since 1928.
The Cellars of Time
The Oldest Wine Still in a Barrel

Beneath Strasbourg’s hospital lies a wine cellar where a barrel from 1472 still holds drinkable wine.

🍷
Cave des Hospices de Strasbourg
Founded 1395
Since 1395, this cellar has supplied wine to the hospital — because in medieval medicine, wine was considered essential for healing. Three historic barrels survive: from 1472, 1519, and 1525. The 1472 barrel contains the oldest wine in the world still aged in its original cask. It has only been tapped three times in over 500 years.
🧩 Riddle
The oldest barrel in this cellar dates from 1472. How many times has its wine been tapped?
💡 Need a hint?
A very small number — this wine is treated as sacred...
🎉 The Answer
B. Three times
The wine was tapped in 1576, 1716, and 1944 (to celebrate the Liberation of Strasbourg). General Leclerc himself toasted with this 550-year-old wine.
The European Dream
From Battlefield to Parliament

A city fought over by France and Germany for centuries now hosts the parliament that unites their continent.

🏛️
European Parliament
Modern · 1999
The symbolism is extraordinary. Strasbourg changed hands between France and Germany four times between 1870 and 1944. After two world wars, the city that embodied the Franco-German rivalry was chosen to host the institutions of European unity. The striking Louise Weiss building (1999) houses the hemicycle where 720 MEPs debate the future of 450 million Europeans.
🧩 Riddle
Strasbourg changed hands between France and Germany multiple times. How many times between 1870 and 1944?
💡 Need a hint?
Franco-Prussian War, then back, then again, then liberation...
🎉 The Answer
C. Four times
Strasbourg became German in 1871, French in 1918, German in 1940, and French again in 1944. The Parlamentarium Simone Veil offers free visits in 24 languages.
The Trade Crossroads
Where Rhine Gold Passed Through

Every bale of cloth, barrel of wine, and sack of grain entering Strasbourg was taxed in this building.

🏭
Ancienne Douane
Medieval · Built 1358
Built in 1358 and enlarged in 1389, the Ancienne Douane (Old Customs House) sat at the commercial heart of the city. Strasbourg’s position on the Rhine made it a vital trading hub between France and the Holy Roman Empire. Goods arriving by river were stored, inspected, and taxed here. Destroyed by Allied bombing on August 11, 1944, it was faithfully rebuilt from medieval plans by architect Robert Will.
🧩 Riddle
The Ancienne Douane was destroyed in 1944 and rebuilt. What caused the destruction?
💡 Need a hint?
It happened during the liberation of Strasbourg in World War II...
🎉 The Answer
C. Allied bombing
British and American bombing raids on August 11, 1944 devastated the building. It sat as a ruin for nearly two decades before architect Robert Will rebuilt it faithfully from the original medieval plans.

📋 More Must-Dos

Top-rated experiences from locals and travelers

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Batorama Boat Tour
70-minute glass-roofed boat tour around the Grande Île and European quarter. The best overview of the city.
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Musée Alsacien
5,000 artefacts in three linked houses. Daily life in 18th–19th century Alsace — costumes, furniture, tools.
🌳
Parc de l’Orangerie
26 hectares, ancient trees, a lake, and the neoclassical Pavillon Joséphine. Strasbourg’s oldest park.
🍷
Alsace Wine Route Day Trip
170 km of vineyards, medieval villages, and tasting rooms. Riquewihr, Colmar, and Eguisheim are highlights.
Église Saint-Paul
Neo-Gothic twin-spired church on the Ill river. One of the most photographed buildings in Strasbourg.
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Opéra National du Rhin
Beautiful neoclassical opera house on Place Broglie. World-class performances at reasonable prices.
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Musée d’Art Moderne et Contemporain
Stunning glass-and-steel museum on the Ill. Monet, Picasso, Kandinsky + rotating contemporary shows.