Princeton Architectural Press's new book "Manhattan Classic" by Geoffrey Lynch, pictured below, (from the firm H3 Hardy Collaboration Architecture) which features the best 'Prewar' apartment buildings in NYC.
Best Addresses by James Goode (another book I can't recommend more highly!)
998 Fifth Avenue but it's interesting to see them placed within their buildings and area of the city -putting a name to the face so to speak. I love this dining room above and the staircase located within the same duplex apartment, seen below, is even more stunning!
The Drama of Old and New in a Milan Townhouse
36 minutes ago