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A seating area is seen on a suspension bridge inside the Amazon.com Inc. Spheres in Seattle, Washington, U.S., on Tuesday, Jan. 23, 2018. The online retailer is scheduled to unveil the spheres Monday morning following seven years of planning and construction. The glass orbs have 40,000 plants from around the world. Photographer: Mike Kane/Bloomberg via Getty Images

A seating area is seen on a suspension bridge inside the Amazon.com Inc. Spheres in Seattle, Washington, U.S., on Tuesday, Jan. 23, 2018. The online retailer is scheduled to unveil the spheres Monday morning following seven years of planning and construction. The glass orbs have 40,000 plants from around the world. Photographer: Mike Kane/Bloomberg via Getty Images