A look at how the land has been shaped by Denmark's colourful history, from the brutal Viking age to the peaceful present day.
Italy is a country that has undergone massive changes in 2000 years. What was the centre of the Roman Empire, it suffered invasions from barbarian hordes.
Italy underwent huge changes over a period of 2000 years. It was the centre of the Roman Empire and has been attracting artists and tourists since the 17th century.
The state of Montana is nearly twice the size of Spain, yet has a population of only one million people. From snow-capped mountains and river canyons to vast areas of grassland.
Fly above Scotland's dramatic landscape and ancient cities where castles, glens and islands tell a rich story dating back 10,000 years to the first evidence of human activity.
