Respuesta :
one year and 45 days
The Empire State Building took only one year and 45 days to build, or more than seven million man-hours. There are observatories on both the 86th and 102nd floors.29 de jul de 2019
The Empire State Building took only one year and 45 days to build, or more than seven million man-hours. There are observatories on both the 86th and 102nd floors.29 de jul de 2019