What is the 2nd floor of a Brownstone known as?

The 2nd floor of a Brownstone is commonly referred to as the parlor floor. This nomenclature is rooted in the historical use of these homes, where the parlor floor was typically designed as a formal living space for guests and family gatherings. It often served as the main reception area and featured higher ceilings, larger windows, and more decorative elements compared to other floors. Therefore, it holds a significant social and architectural distinction within the structure. The other options do not carry the same historical or architectural significance in terms of Brownstone layouts.