The Amazon Spheres are three spherical conservatories comprising part of the Amazon headquarters campus in Seattle, Washington, United States. Designed by NBBJ and landscape firm Site Workshop, its three glass domes are covered in pentagonal hexecontahedron panels and serve as an employee lounge and workspace. The spheres, which range from three to four stories tall, house 40,000 plants, as well as meeting space and retail stores. They are located adjoining the Day 1 building on Lenora Street. The complex opened to Amazon employees and limited public access on January 30, 2018. The spheres are reserved mainly for Amazon employees, but are open to the public through weekly headquarters tours and an exhibit on the ground floor.