Posted 3 years ago on May 24, 2012, 7:19 p.m. EST by 22250flatshot
This content is user submitted and not an official statement
The Empire State Building was built in 13 months. The Golden Gate bridge was built in 4 years. Hoover Dam took 4 years. The Sears Towers took 3 years. The Trans Continental railroad took 6 years.
The 2 World Trade Center towers took 4 years. We are now on Year 11 of rebuilding the Twin towers.