New York's Skyscraper Museum has released an online tool that tracks the growing number of skinny towers in the city.
The interactive chart compares the heights and silhouettes of 18 so-called "super-slenders" now complete or under construction in New York.
Many of these measure well over 1,000 feet (305 metres), and some have ratios of base-width to height as extreme as 1:23.
"The new towers, our chart and images show, are taller and skinnier than their precedents," Skyscraper Museum founder and director Carol Willis told Dezeen.
"The benefit is a whole new fascinating crop of individualistic towers on New York's evolving skyline."
The Skyscraper Museum's chart compares the heights and silhouettes of 18 "super-slenders" in New York ? click to see the full chart Her team's web project expands a list of these luxury residential towers first compiled for a 2013 exhibition titled Sky High and the Logic of Luxury, at the museum in New York's Battery Park. Willis coined the term super-slenders for the show.
The updated material provides details about the typology, and includes a chart that places the structures against the world's tallest buildings.
Willis said that the rise of the skinny skyscraper in New York is largely due to developers' pursuit of hefty profits.
"It's economics, even more than engineering, that has produced this new form of residential skyscraper," said Willis, who is also a professor of architecture at Co...