Rhine Trivia
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56 free Rhine trivia questions with answers — geography quiz, new questions added Aug 2026.
The Rhine rises in the Swiss Alps, forms borders with Liechtenstein, Austria, Germany and France, and reaches the North Sea through the Netherlands after about 1,230 kilometres. This quiz follows it downstream: the Tomasee and the two headstreams that meet at Reichenau, Lake Constance and the Rhine Falls, the knee at Basel, the straightened Upper Rhine, the castle-lined gorge past the Lorelei, the Rhine-Ruhr industrial belt and Europe's biggest inland port, and the delta where the Waal takes two-thirds of the water to Rotterdam. It also covers what happened on its banks: the Roman frontier, Cologne Cathedral, the Nibelung legends and Wagner's Rhinegold, Riesling and the Rheingau, the Rhine crisis and 'Die Wacht am Rhein', the Ludendorff Bridge at Remagen, Montgomery's Operation Plunder, the 1986 Sandoz spill and the Rhine-Main-Danube Canal. Questions run from easy (which sea the Rhine flows into) to expert (which distributary carries a ninth of the flow). Every answer was checked against Wikipedia's articles on the Rhine, its sections, cities, landmarks and history, and each question shows the sentence that supports it. Try our Germany, Danube and rivers of Europe quizzes next.
30 of 56 questions with answers and explanations. Play the quiz
Q 01The Rhine empties into which sea?
The North Sea
The Rhine empties into the North Sea: after running north through Germany it swings west across the Netherlands and reaches the sea through the distributaries around Rotterdam.
Q 02The Rhine begins in which Swiss canton?
Graubünden
The Rhine rises in Graubünden, Switzerland's largest canton, where both of its headstreams, the Anterior and Posterior Rhine, begin high in the Alps.
Q 03Roughly how long is the Rhine?
1,230 km
At about 1,230 km the Rhine is the second-longest river in Central and Western Europe after the Danube, draining a basin of roughly 185,000 square kilometres.
Q 04The Rhine's name derives from Rēnos, a word from which ancient language?
Gaulish
Rēnos is Gaulish, the Celtic language of ancient Gaul; it comes from a root meaning 'to flow', shared with Italy's river Reno, and the 'Rh' spelling reflects the Greek form Rhēnos.
Q 05Where do the Anterior and Posterior Rhine join to form the Alpine Rhine?
Reichenau in Tamins
The Anterior and Posterior Rhine meet at Reichenau in Tamins, just west of Chur; the Anterior Rhine arrives there through the Ruinaulta gorge cut into the Flims rockslide debris.
Q 06Which tiny country's border with Switzerland is formed by the Alpine Rhine?
Liechtenstein
The Alpine Rhine forms the whole 41 km Liechtenstein–Switzerland border; downstream it also separates Switzerland from Austria before reaching the big lake.
Q 07The Rhine flows through which large body of water shared by Germany, Switzerland and Austria?
Lake Constance
Lake Constance, the Bodensee, is Central Europe's third-largest lake; the Rhine enters its Obersee near Bregenz, crosses the 4 km Seerhein and leaves the Untersee at Stein am Rhein.
Q 08What are the dimensions of the Rhine Falls near Schaffhausen?
150 m wide, 23 m high
The Rhine Falls are 150 m wide and 23 m high, carrying an average of about 370 cubic metres per second, one of the largest flows of any plain waterfall in Europe; they formed 14,000 to 17,000 years ago.
Q 09Which tributary, joining near Koblenz in the canton of Aargau, more than doubles the Rhine's flow?
The Aare
The Aare, Switzerland's longest wholly domestic river, enters the Rhine near Koblenz in Aargau carrying more water than the Rhine itself; its basin holds the Finsteraarhorn, 4,274 metres, the highest point in the Rhine system.
Q 10At which city does the 'Rhine knee' turn the river from flowing west to flowing north?
Basel
At Basel the 'Rhine knee' turns the river from its westward course north into the Upper Rhine Plain; the bend lies in Swiss territory and marks the end of the High Rhine.
Q 11Which engineer is credited with 'domesticating' the Upper Rhine by straightening it in the 19th century?
Johann Gottfried Tulla
Johann Gottfried Tulla, a Baden engineer, began straightening the Upper Rhine in 1817, shortening it by dozens of kilometres and draining malarial marshes; near Istein the deepened river cut down to bare rock and formed rapids.
Q 12Which French city on the Upper Rhine is the seat of the European Parliament?
Strasbourg
Strasbourg is the official seat of the European Parliament, fixed by the EU treaties; it also hosts the Council of Europe and the European Court of Human Rights, and the Ill flows through it into the Rhine.
Q 13Which two French departments in Alsace are named after the Rhine?
Q 21Cologne Cathedral, on the Rhine, was begun in 1248 and finished to its medieval plan in which year?
1880
Cologne Cathedral was completed in 1880, 632 years after work began; at 157 metres its twin spires made it briefly the tallest building in the world, until the Washington Monument in 1884.
Q 22Which Rhine city hosts Europe's largest inland port?
Duisburg
Duisburg's port, Duisport, at the mouth of the Ruhr, is Europe's largest inland port by cargo handled, feeding the sea ports of Rotterdam, Antwerp and Amsterdam.
Q 23The Rhine-Ruhr region, which the Lower Rhine flows through, is what?
Germany's largest conurbation
Bas-Rhin and Haut-Rhin
Bas-Rhin (Lower Rhine) in the north and Haut-Rhin (Upper Rhine) in the south, with its prefecture at Colmar, were created in 1790 when revolutionary France divided Alsace into departments.
Q 14Which river joins the Rhine opposite Mainz?
The Main
The Main flows in from the east opposite Mainz, at the Mainspitze by Mainz-Kostheim; among the other big tributaries, the Neckar joins upstream at Mannheim.
Q 15The Rhine Gorge between Rüdesheim and Koblenz was made a UNESCO World Heritage Site in which year?
2002
UNESCO listed the Upper Middle Rhine Valley, the 65 km gorge from Bingen and Rüdesheim to Koblenz, as a World Heritage Site in 2002 for its castles, vineyards and historic towns.
Q 16How tall is the Lorelei, the slate rock at Sankt Goarshausen famed for its siren legend?
132 metres
The Lorelei rises 132 metres above the river at a narrow, fast bend of the gorge; the name likely means 'murmuring rock', from the echo of the rapids off the slate.
Q 17Which of the 40 hill castles between Bingen and Koblenz was never destroyed or left to decay?
Marksburg
Marksburg, above Braubach and first mentioned in 1231, is the only hill castle on the Middle Rhine never destroyed nor allowed to decay; the German Castles Association bought it in 1900 and is headquartered there.
Q 18The Deutsches Eck in Koblenz is the promontory where which river joins the Rhine?
The Moselle
The Moselle meets the Rhine at the Deutsches Eck, named after a Teutonic Order commandry founded there in 1216; the headland carries a huge equestrian statue of Kaiser Wilhelm I, rebuilt in 1993.
Q 19Koblenz began as a Roman military post founded around 8 BC by whom?
Drusus
Drusus, Augustus's stepson and commander on the Rhine, set up the post around 8 BC; the name comes from Latin Confluentes, 'the merging rivers', for the meeting of two rivers there.
Q 20At which city, where the Sieg flows in, does the Rhine leave the gorge and become the Lower Rhine?
Bonn
From here it drops from 50 to 12 metres above sea level across the North German Plain.
The Rhine-Ruhr region is Germany's largest conurbation, with around ten million people in Cologne, Düsseldorf, Essen, Dortmund and the other Ruhr cities, and much of the river's industry.
Q 24Which Dutch distributary carries about 65 percent of the Rhine's water?
The Waal
The Waal, the Rhine's main Dutch branch, takes roughly two-thirds of the flow, running about 80 km west past Nijmegen towards Rotterdam; the remaining third goes down the Pannerdens Kanaal.
Q 25The IJssel branch of the Rhine flows north into which body of water?
The IJsselmeer
The IJssel runs north past Deventer, Zwolle and Kampen into the IJsselmeer, the freshwater lake that replaced the tidal Zuiderzee after the Afsluitdijk dam closed it off.
Q 26The Old Rhine (Oude Rijn) reaches the sea through a sluice at which Dutch town?
Katwijk
The Oude Rijn passes Leiden and meets the sea at Katwijk through sluice gates, its natural mouth having silted up in the Middle Ages; the branch once marked the Roman frontier line.
Q 27About 11,000 years ago, where was the Rhine's estuary?
In the Strait of Dover
Sea level was then far lower, so the Rhine ran south-west across dry Doggerland and had its estuary in the Strait of Dover; the sea flooded the southern basin over the following few thousand years.
Q 28Together with the Danube, the Rhine formed much of the northern inland frontier of which ancient power?
The Roman Empire
The Roman Empire used the Rhine and Danube as its northern inland frontier for centuries; where the rivers fell short, the Limes Germanicus plugged the gap with palisades, watchtowers and forts.
Q 29The Limes Germanicus stretched from the Rhine's mouth to which town on the Danube?
Regensburg
The Limes Germanicus ended near Regensburg, the Roman Castra Regina; its land section left the Rhine at Rheinbrohl, north of Koblenz, and ran about 550 km to the Danube.
Q 30Whose Symphony No. 3, the 'Rhenish', was inspired by the Rhineland?
Robert Schumann
Robert Schumann wrote his Symphony No. 3 in E-flat, the 'Rhenish', in 1850 soon after moving to Düsseldorf; its solemn fourth movement was prompted by a ceremony at Cologne Cathedral.