Plans have been unveiled for a 425-metre-high skyscraper designed by architect Rafael Viñoly for New York’s Park Avenue, which will become the tallest residential tower in the USA if built - The Wall Street Journal.
While buildings over 300 metres are currently classed as "supertall", the Council on Tall Buildings and Urban Habitat in Chicago published a report at the end of last year announcing "the era of the mega-tall tower" and predicting the 20 tallest buildings in the world by the year 2020 - more details in our earlier Dezeen Wire story.
See more stories about Rafael Viñoly here, including the interview we filmed with the architect about the golden arts centre he completed in September last year.
See all our stories about skyscrapers »