Museo Cerralbo in Madrid
Foyer or parlor or walk-in closet or laundry room (for all I know) of the Museo Cerralbo in Madrid. The 17th Marquis of Cerralbo deeded these digs to Spain in the early 1920s.
Partial to bling? Look no further. The Marquis wrote the bling book. A three euro ticket entitles you to stroll freely amidst all this finery, albeit beneath the understandably watchful eyes of security staff.