Apple started off their keynote address with a flythrough tour of the new space, designed by Foster + Partners (as is the main ring-shaped building), offering the first views into the below-ground spaces and the meticulous details of the ceiling, glass walls and carved handrails.
Cite: Patrick Lynch. "Apple Event Offers First Look into Apple Park's Steve Jobs Theater" 12 Sep 2017. ArchDaily. Accessed . <https://www.archdaily.com/879560/apple-event-offers-first-look-into-apple-parks-steve-jobs-theater> ISSN 0719-8884