The world's largest country, whose capital is reportedly home to more billionaires per capita than anywhere else on Earth, how much do you know about Russia?

One of the world’s oldest countries, Portugal is renowned for its picturesque coastal towns, culture-rich cities and celebrated cuisine. See how much you know about Portugal with these multiple choice questions...

The Caribbean’s largest island and its second most populous nation, Cuba is famed for its colourful classic cars, infectious music and legendary cigars. Test your knowledge of the country with these multiple choice questions...

The US is the third largest and third most populous country in the world; its geographical and cultural diversity make it a popular destination for tourists. How much do you know about the ‘Land of the Free’..?