Will be updated.
The quintessential symbol of the St. Louis region, the Gateway Arch, has been under special scrutiny lately as rusty stains on its structure caused concerns.
The National Park Service has released a report from a Chicago engineering firm today saying that the stains are merely cosmetic and that the Arch is "as sound today as the day it was built." (It was completed in 1965 - and for the history lovers out there, here's a gallery of that process).
