By A Mystery Man Writer
Water and Power Associates
Fifth Avenue Then and Now, a Century of Streetviews in New York City - The Atlantic
New york washington square hotel hi-res stock photography and images - Alamy
The Gilded Age Mansions of 5th Avenue in NYC - Untapped New York
A Guide to the Manhattan Neighbourhoods - Travel Dudes
Fifth Time's the Charm? Advocates Wary of City's Latest Talk of Redesigning the Ritzy Avenue - Streetsblog New York City
Fifth Avenue 1925: NYC's Luxury and Legacy in Focus
Fifth Avenue Then and Now, a Century of Streetviews in New York City - The Atlantic
Then & Now Photos: See How Strikingly Different 5th Avenue Was In 1911 - Gothamist
Wall Street - Wikipedia
The Gilded Age reality tour
A Guide to the Gilded Age Mansions of 5th Avenue's Millionaire Row – Part II
Then & Now: A Home Fit for Fifth Avenue (and Mark Twain) - Village Preservation
Daytonian in Manhattan: The Lost Victoria Hotel -- Fifth Avenue and 27th Street