Retail company Amazon has completed a set of glass orbs filled with "cloud forest" gardens for its headquarters in Seattle, providing work areas for employees and green space for the public.
The Spheres comprises a trio on connected glass domes, located in the centre of Amazon-occupied office towers in Downtown Seattle.
Amazon founder and CEO, Jeff Bezos, officially opened the project on 29 January 2018, by giving a voice command to the company's digital assistant, Alexa.
The structure was designed by American architecture firm NBBJ, which gained approval for the project in 2013.