Beyond the answers - interesting background to this quiz

Where Europe's highest point actually stands

Mount Elbrus rises to 5,642 metres in the Caucasus, making it the highest peak on the European continent. The Caucasus range marks the traditional boundary between Europe and Asia, which is why Elbrus counts as European rather than Asian. Mont Blanc, the highest summit in the Alps, is often mistakenly named as Europe's roof. Its elevation is around 4,800 metres and it has long been a favourite challenge for mountaineers.

The longest mountain range on Earth

The Andes stretch roughly 7,000 kilometres along the western edge of South America, running through Colombia, Ecuador, Peru, Bolivia, Chile and Argentina. They form part of the Pacific Ring of Fire and contain some of the highest peaks outside Asia. Chile, one of the countries in the quiz, is essentially a long, narrow strip of land squeezed between the Andes and the Pacific Ocean.

A novel born from a real war

Ernest Hemingway's For Whom the Bell Tolls follows Robert Jordan, an American dynamiter fighting alongside Republican forces in the Spanish Civil War. Hemingway drew on his own experience reporting the conflict for American newspapers. The title comes from a line by the English poet John Donne. Published in 1940, the novel became one of Hemingway's best-known works.

The many faces of Italian unification

Giuseppe Garibaldi earned the nickname "Iron Man of Italy" for his role in the Risorgimento, the movement that unified the Italian peninsula in the nineteenth century. His volunteers, known as the Redshirts, captured Sicily and southern Italy in 1860. Garibaldi then handed his conquests to King Victor Emmanuel II of Sardinia, who became the first king of a united Italy in 1861.

A continent without borders

Antarctica has no countries, no permanent residents and no government. The Antarctic Treaty, signed in 1959, set the continent aside for peaceful scientific research and froze all territorial claims. Several nations operate research stations there, but none of them owns the land. It remains the only continent on Earth without a single sovereign state.