The red house is called Nyhavn 53.
The unique red-colored building, located in the heart of Copenhagen, is called Nyhavn 53 or Madame Tofte's House. Originally built in the 1750s with three floors, it was later renovated in the 1870s, giving it its present look. In 1932, it was added to the Danish register of protected buildings and locations. This residential structure sits alongside the Nyhavn canal.