Something to blow the mind.....

MIT News has a story on Eran Ben-Joseph's new book on parking lots. This particular passage gave me pause:

No one knows how many parking spaces exist in the country: Past estimates have ranged from about 100 million to 2 billion. The first figure seems far too low, since the nation has about 255 million registered passenger cars. Further estimates suggest that on average, three non-residential parking spaces exist for every car in the United States. That would yield almost 800 million parking spaces, comprising a total area larger than Puerto Rico.

That's mindblowing....