Dive summary:

• In Seattle, e-tailer Amazon wants to go for three biodomes with indoor mature trees, 65,000 square feet of multi-purpose space and three adjoining 38-story office buildings.
• The new plan, conceptualized by NBBJ, is a far cry from the six-story office building that had been approved.
• The whole project covers three blocks and five acres.

From the article:

Varied botanical zones will be created, based on diverse climate patterns. ...