Palace of Charles of Lorraine - Credit: Wikimedia Commons
The Palace of Charles of Lorraine (, ) is a neoclassical palace in the Royal Quarter of Brussels, Belgium. Its construction started in 1757 to serve as the residence of the Governor of the Habsburg Netherlands, Prince Charles Alexander of Lorraine, replacing the Palace of Orange-Nassau. It currently houses a museum, part of the Royal Library of Belgium (KBR). Read more on Wikipedia
Source: en.wikipedia.org