Cologne is the largest city in the German federal State of North Rhine-Westphalia and the fourth-largest city in Germany. In medieval times it was the largest city of the Holy Roman Empire. It is one of the nation's media, tourism and business hotspots. Cologne is known to be one of the most liberal cities in Germany.

Cologne is a traditionally Ripuarian-speaking city, though this has mostly been replaced by German, which is now the main language of the city. English-speaking guides and information are available for many of the landmarks of the city. Cologne's citizens are also very friendly and jovial people, welcoming tourists of all types and with all interests.