Schleswig-Holstein GuideSchleswig-Holstein is the northernmost state of Germany. It borders Denmark and has coasts on both the North and Baltic Seas. German. Most people understand English. HotelsFind hotels in Lubeck, Kiel, Flensburg, Travemunde and more. LübeckLübeck is a medieval city in Schleswig-Holstein, the northernmost state of Germany. KielKiel is the capital city of the German state of Schleswig-Holstein and has a population of roughly 240,000. NeumünsterNeumünster is the fourth largest city in Schleswig-Holstein with a population of approx. FlensburgFlensburg is a city in Schleswig-Holstein located on the east coast. The 85000 inhabitants live around the Flensburger Förde. Holstein SwitzerlandHolstein Switzerland is a picture-postcard region of lakes, woods and gently rolling hills in Schleswig-Holstein in Northern Germany, not far from the Baltic Sea coast. North Frisian IslandsNorth Frisian Islands are in Schleswig-Holstein in northern Germany. The North Frisian Islands are located in Germany so all locals speak standard German. ItzehoeItzehoe is a city in Schleswig-Holstein.