Apart from Jutland, which is attached to Germany, Denmark is a concentration of small islands. The biggest ones are Zealand, where you will find Copenhagen, Funen and Bornholm. Denmark has one of the largest coast lines in Europe, meaning you are never far from the sea.
But Denmark is actually more than that. The Faroe Islands in the North Atlantic and Greenland, which is part of the North American continent, also belong to Denmark but have autonomous self-rule.