Nestled in a bay of the deep Trondheimsfjord, where it meets the Nidelva, Trondheim is Norway's third largest city and one of its oldest. It developed around its famous cathedral and has always played a vital part in the country's cultural and spiritual life. With its cobbled streets and the areas around the port regenerated into trendy neighbourhoods, the so-called "gateway to the north" is a great place to visit.