Jeff Bezos, the CEO and founder of Amazon.com, takes a walking tour of the Amazon Spheres, three plant-filed geodesic domes that serve as a work- and gathering place for Amazon employees, following a grand opening ceremony, Monday in Seattle. (AP Photo/Ted S. Warren)

Gathering spaces and a plant-filled wall are shown before a grand opening ceremony for the Amazon Spheres on Mondayin Seattle. (AP Photo/Ted S. Warren)

Jeff Bezos (third from left), the CEO and founder of Amazon.com, takes a walking tour of the Amazon Spheres following a grand opening ceremony Monday in Seattle. (AP Photo/Ted S. Warren)

Pedestrians walk past the Amazon Spheres in downtown Seattle on the day of the grand opening of the geodesic domes, which will primarily serve as a working and gathering space for Amazon.com employees, Monday in Seattle. (AP Photo/Ted S. Warren)

Guests sit in an area of the Amazon Spheres known as “the nest,” on the day of the Spheres’ grand opening in Seattle. (AP Photo/Ted S. Warren)

CEO and founder of Amazon.com Jeff Bezos (center) laughs as he talks with Ron Gagliardo (right), the lead horticulturist of the Amazon Spheres, following the grand opening ceremony Monday in Seattle. (AP Photo/Ted S. Warren)

Alex Crook, a photographer with Seattle Magazine, photographs the Amazon Spheres in downtown Seattle on the day of their grand opening in Seattle. (AP Photo/Ted S. Warren)

Guests listen as Jeff Bezos, the CEO and founder of Amazon.com, speaks during the grand opening of the Amazon Spheres on Monday in Seattle. (AP Photo/Ted S. Warren)

A worker walks her dog past the Amazon Spheres in downtown Seattle on the day of the grand opening of the geodesic domes. (AP Photo/Ted S. Warren)

Jeff Bezos speaks during the grand opening of the Amazon Spheres on Monday in Seattle. (AP Photo/Ted S. Warren)

Gathering spaces and a plant-filled wall are shown before a grand opening ceremony for the Amazon Spheres on Monday in Seattle. (AP Photo/Ted S. Warren)