It would seem that last week's dough-based brainteaser was just too tough. The answer to the question of which nation first came up with the idea for pizza is the Greeks.Auto Europe's destination of the month for August is the United Kingdom. To test your knowledge of the country that sits outside your front door, here's the first of four UK trivia questions. We're kicking off with a nice easy one!A great many of the United Kingdom's rivers change their type as they flow to the sea and most if not all, have stretches flowing through some of Britain's most scenic areas. Whether you enjoying rowing, fishing or simply lazing on a riverbank with a picnic (my preferred choice), messing about on the river has long been a favoured pastime of the British.The longest river in the UK runs for 220 miles and enters the Atlantic Ocean near Bristol in England. But what is it called?