How much do you know about the world’s lakes? Find out with these multiple choice questions...

Usually the result of weathering and erosion, unique rock formations are found all over the world - sometimes in splendid isolation and sometimes creating spectacular landscapes that stretch for miles. Test your knowledge of some of the world’s most famous rocks with these multiple choice questions...

Famed for its iconic architecture and romantic reputation, Paris is a vibrant, modern city that’s brimming with bistros and boutiques. Test your knowledge of the French capital with these multiple choice questions...

Waterfalls are undoubtedly amongst Earth’s most beautiful natural attractions. See how much you know about some of the world's most famous cascades with these multiple choice questions.