The first postcard shows a drawing of different old buildings in Copenhagen (København) one of the most beautiful capitals in the world (-in my opinion). Copenhagen have the longest pedestrianstreet in the world, and that is a shoppingheaven (for those who is shopaholics).
The second postcard shows Helsingør, a small city outside Copenhagen. It's well known for the ferry to Helsingborg in Sweden. It's also known for the play Hamlet written by William Shakespeare, which takes place on the castle Kronborg, which you can see on this postcard.