Pencil tower - Wikipedia
Seven super-skinny skyscrapers changing New York City's skyline
New Condo Towers Are Racing Skyward in Midtown Manhattan
As a New High Society Climbs in Manhattan, It's a Race to the Top
Why are There Suddenly so Many Super-Skinny Skyscrapers?
Seven super-skinny skyscrapers changing New York City's skyline
NEW YORK'S SUPER-SLENDERS
Why doesn't NYC try and build the world's tallest building again? - Quora
World's skinniest skyscraper by SHoP Architects completes in Manhattan
NEW YORK'S SUPER-SLENDERS
New York's Pencil Towers: A New Breed of Skyscraper - Owlcation
Are New York's new super-tall skyscrapers icons of ingenuity or enclaves of inequality?
The High Life, 2015-05-16