New York’s Chrysler Building, one among the city’s most iconic skyscrapers, was built up in a remarkably short time — foundation work began in November 1928, and therefore the building officially opened in May 1930.
Even more interesting, the steelwork went up in only six months within the summer of 1929 at a mean rate of 4 floors every week .
Fox Movietone’s sound cameras visited the development site several times in 1929 and 1930. The footage show construction workers standing and sitting on steal beams 1,000 feet within the air with none safety equipment.
The Chrysler Building had 3,000 workers and nobody died during construction.
Here is the footage,just amazing: