Delta's Las Vegas Sphere keynote was the hot ticket at this year's CES -- and it ended up stealing the entire show.

As CES comes to a close, let’s take a look back at all the big announcements and reveals we’ve seen throughout the conference. Press day started off strong with announcements from Nvidia, Samsung, and Toyota.

More new, surprising, exciting, and oftentimes ridiculous ideas are debuted on any given day at CES than during most other weeks of the year. But at the end of the day, some of these ideas and gadgets stuck with us the most.

Laptops with rollable screens, giant TVs with suction cups, microwaves with video -- see the most innovative tech we found this year at CES.