• Philadelphia wants Amazon to know it's serious about competing for the company's second headquarters.
  • The city is sending staffers to Seattle "to ensure we really understand the Amazon culture and what they're looking for in a new city/ culture," a spokesperson told CNBC.
  • Amazon has said that it wants a metro area with more than 1 million people, the ability to attract top talent, and more.

As cities gear up to pitch themselves to house Amazon's second headquarters, Philadelphia is making sure Amazon knows it's serious.