In Vienna he finds out about the Christmas market's origins and the ingredients that make them such special places, from mulled wine to hand-made decorations. He also reveals how the UK's Christmas traditions travelled from this part of Europe, with the help of Queen Victoria's husband Prince Albert.
Gregg explores the spectacular Tivoli Gardens in the heart of Copenhagen. Here, he finds out how designers use more than a million lights to create a festive show unlike anywhere else in the world, before visiting one of the city's oldest bakeries to take a special tour of the factory. Back onto the bustling streets of Copenhagen, he visits some of the other famous Christmas markets, including one dedicated to Hans Christian Andersen