We begin our journey around Iceland with traveller Laura Guiauchain in the spectacular Fjallabak National Park.

Laura Guiauchain travels in a variety of trucks to the four "Imperial Cities", seeking the origins of Morocco.

Zay Harding travels by truck across the frozen ice roads of north-eastern Siberia, en route to the Arctic Circle.

Zay Harding travels by truck through Central America's toughest and most spectacular country, Guatemala.

For thousands of years Turkey has been at the heart of Ancient trade routes linking China and Europe that have brought silk, exotic spices, new cultures and ideas through Turkey to the west and beyond.

Zay Harding travels by truck across one of Africa's toughest and most spectacular countries, Ethiopia.