Philadelphia and Pittsburgh plan to make pitches to be Amazon's second home.

Philadelphia's Democratic Mayor Jim Kenney says the city would be a "prime" location.

Kevin Acklin, chief of staff to Pittsburgh Mayor Bill Peduto, says Pittsburgh is "uniquely positioned to submit a winning bid."

Seattle-based Amazon said Thursday it will be spending over $5 billion to build another headquarters in North America to house as many as 50,000 employees.

It wants to be near a metro area with more than a million people, have direct access to mass transit and be within 45 minutes of an international airport. It also wants a lot of room to grow and be able to attract top technical talent.

An Allegheny county executive says Pittsburgh's affordability and local talent put it in a good positon.

A city spokeswoman says Philadelphia's rapidly growing millennial talent pool makes it a great fit.