The Spheres are located in Downtown Seattle right next to the Amazon headquarters. There are 3 spheres that are connected and the inside is filled with over 40,000 individual plants from 300 species! There are also space to sit and work and even a little cafe. It was quite a humid space since most plants are from tropical countries and the spheres work as a greenhouse but definitely a cool place to check out! And lots of great photo opportunities. For now you can only visit the spheres if you know someone at Amazon that can bring you in, since it after all is a workspace.