- bbc.com travel/article/20130114-mini-guide-to-…Cologne’s geographical, medieval and spiritual heart is the Kölner Dom – the city’s magnificent cathedral, built over seven centuries and completed in 1880.
- newworldencyclopedia.org entry/CologneHistory
- alt Reconstruction of the Roman city of Cologne.
- Chorweiler, a social housing development from the 1970s in the north of Cologne.
- Book your stay in the best districts of Cologne, near the magnificent Cologne Cathedral or near the Cologne Chocolate Museum.
- instagram.com koeln_de/83K Followers, 371 Following, 1,335 Posts - Köln | Cologne | koeln.de (@koeln_de) on Instagram: "Hier postet das offizielle Stadtportal für #Köln.
- study.eu city/cologneAs the fourth-largest city in Germany, Cologne (Köln) is home to an urban population of just over one million people.
- en.wikivoyage.org wiki/CologneCompared to other German and European cities, the ancient and medieval Cologne was relatively large, covering most of the modern-day city centre.
- Under the top theme of “Connecting Communities” , imm cologne will once again bring together the international furnishing industry in Cologne in 2025.
- moonhoneytravel.com europe/germany/cologne/We lived in Cologne for one year and we can say with much assurance, you won’t understand Cologne until you’ve experienced Karneval.
- gentlemansgazette.com cologne-guide/The ultimate guide to cologne for men; an analysis of cologne composition, tips and tricks, how to select fragrances, how to apply, & what not to do.
- getyourguide.com cologne-l19/After taking in a view of the iconic Cologne Cathedral and Old Town, cruise to the Rheinauhafen, where you can spot its distinctive crane houses.