RT @openculture: New York Public Library Puts 20,000 Hi-Res Maps Online & Makes Them Free to Download and Use https://t.co/IX5SWaOiM3 https://t.co/Dzot2rxx4M

New York Public Library Puts 20,000 Hi-Res Maps Online & Makes Them Free to Download and Use https://t.co/IX5SWaOiM3 http://pic.twitter.com/Dzot2rxx4M

— Open Culture (@openculture) June 22, 2017

from Twitter https://twitter.com/DouglasHAllen