Amazon's hunt for a second headquarters, after several months of publicity stunts and dangled perks from cities and regions vying to lure the e-commerce giant, has been narrowed to 20 options from 238 bids. The company, which is based in Seattle, plans to invest $5 billion in development and create up to 50,000 jobs wherever it builds its newest hub. With the kind of enthusiasm normally reserved for bids to host the Olympics, governors, mayors, business leaders and others have pulled together proposals promoting the potential of their cities and regions, sometimes going to outlandish lengths. These are some of the places that caught Amazon's attention. Schools: The caliber of local schools is impressive, including Harvard University, Boston University, the Massachusetts Institute of Technology and Tufts University.