It took 410 days to build the Empire State Building; four years to erect the Golden Gate Bridge. The Pentagon took two years; the Alaska Highway just nine months. These days it takes longer to build an overpass.
For instance, planning for Boston's "Big Dig" officially began in the early 1980s with a budget of $2.6 billion, but ground wasn't broken until 1991 and the last ramp wasn't opened until 2006. The final estimated cost: $22 billion. According to the Boston Globe, it won't be paid off until 2038.
Meanwhile, the "race" to rebuild the World Trade Center as some kind of remorse theme park approaches its second decade.
And across the harbor from Ground Zero, Republican New Jersey Gov. Chris Christie has earned scorn for thinking that a proposed underwater rail tunnel between New York and New Jersey might be too pricey. Under discussion for decades, it was originally projected to cost $5 billion. Estimates are now $9 billion and rising.