GIS & Statistical Data Resources
Located at the Digital Social Science Center. Includes New York City, population, economics, health, international data.
 

Global Studies
The Global Studies division develops collections from and about many regions of the world in a wide range of languages, supporting programs and research. Includes Africa, Latin America, Middle East, Russia and Eastern Europe, South & Southeast Asia.

Seymour B. Durst Old York Library
Avery Architectural & Fine Arts Library
The Seymour B. Durst Old York Library collection at the Avery Architectural & Fine Arts Library consists of more than 40,000 objects including historic photographs, maps, pamphlets, postcards, books, and New York City memorabilia from the 18th century to the 1980s.
 

New York Real Estate Brochure Collection
Avery Architectural & Fine Arts Library
The New York Real Estate Brochure Collection was donated to Avery Architectural & Fine Arts Library by Yale Robbins, Henry Robbins, and David Magier in 1986. The collection consists of over 9,200 advertising brochures, floor plans, price lists, and related materials that document residential and commercial real estate development in the five boroughs of New York and outlying vicinities from the 1920s to the 1970s.
 

Avery Library's Historic Preservation Research Guide may also be of use to guide you to further resources.