Here is where all the Dark Wizard and Witches can get there clothing if they don't want to go to Diagon Alley. That way they don't have to deal with Madam Malkin or anyone else in diagon alley.

Nurmengard is the prison that Gellert Grindelwald built to keep his enemies and Muggles. The entrance of Nurmengard was marked with the symbol of the Deathly Hallows, along with the legend "For the greater good". After Dumbledore defeated Grindelwald, the prisoners were released and Grindelwald himself was imprisoned in the top-most cell. Nurmengard is depicted in the final book when Voldemort arrives at the prison looking for Grindelwald and information about the Elder Wand. After Grindelwald refuses to give him any information, Voldemort kills his predecessor in his own prison.

Dark Rose is a Pub that is where all the Dark Wizards and Witches and Dark Creatures go to drink in peace and not have to worry about the Light Wizards.