Behind the scenes at Google I/O 2016

These 13 images provide an inside look at Shoreline Amphitheatre in Mountain View, Calif., the site of Google's 2016 I/O developer conference, as well as some other quirky scenery at I/O.

01 googleiointro
Matt Kapko

Google I/O 2016 kicks off in style

Google this week held its annual developer conference right next door to its headquarters in Mountain View, Calif., at the massive, storied Shoreline Amphitheatre. More than 6,500 people attended the outdoor keynote address, which felt a bit like an early morning rave, complete with thundering bass, trippy imagery and ambient sound.

02 googleio1
Matt Kapko

Check-in and Google I/O swag

At the registration desk, I/O attendees received all kinds of swag, including Google's Cardboard VR headset, a water bottle, a head wrap, sunscreen and shades — omens of the heat that came later in the day.

03 googleio5
Matt Kapko

DJ amps up the crowd

A DJ was on stage at I/O to make sure attendees were awake with a heavy dose of techno and bass.

04 google ceo sundar pichai io 2016
REUTERS/Stephen Lam

Google CEO takes the main stage

During the opening keynote, Google CEO Sundar Pichai introduced the company's Google Assistant, a new platform that blends AI and machine learning to provide more contextual responses and automated action. "We want users to have an ongoing, two-way dialogue with Google," he said. "We think of this as building each user their own individual Google."

05googleio7
Matt Kapko

Google Home makes its debut

Google's Vice President of Product Management Mario Queiroz revealed the Google Home voice assistant device during the opening I/O keynote. The device is expected to ship later this year, and it will compete directly with Amazon's Echo assistant.

06 googleio8
Matt Kapko

VR gets an upgrade

Clay Bavor, vice president of virtual reality at Google, said more than 50 million apps have been downloaded for Google Cardboard to date. He also announced an expansion of VR to Android and a new platform for high quality VR on mobile devices, called Daydream, that's expected to be released this fall.

07 googleio9
Matt Kapko

Marathon I/O keynote comes to a close

Once the morning keynote was a wrap, attendees clogged the aisles as they filtered out to the surrounding areas to check out special exhibits and demo booths.

08 googleio10
Matt Kapko

Calm after the storm at Shoreline Amphitheatre

Just a few minutes after the keynote ended, only a few brave souls remained in the amphitheatre's seating bowl.

09 googleio11
Matt Kapko

Google bikes stand by

Google I/O attendees could cruise around parts of the event venue on colorful bikes.

10 googleio12
Matt Kapko

A dancing, painting robot at I/O

Picture this: a robot, dancing on a swivel, picking up brushes at random while spraying various colors of paint at a large, rotating box rotating. That happened at I/O.

11 googleio13
Matt Kapko

Next stop, Burning Man?

It's unclear exactly what this wacky bus has to do with Google, or I/O, or developers, but it was outfitted to look like a wooden ship ready for some rough seas ahead.

12 googleio14
Matt Kapko

Let Google do the driving for you

Forget the wacky wooden bus. Google's self-driving car prototype could take you wherever you need to go.

13 googleio15
Matt Kapko

Reflecting on I/O through art

Google has packed I/O venues with creative ideas for a decade, but this year it took art exhibits to a new level, with installations like this colorful mirror setup.