It was a really cool, low-key exhibit tucked into the VIZ Cinema lobby in the bottom floor of the New People center, with some really cool images of various yokai. Anime fans tend to be most familiar with the term as it relates to InuYasha, whose titular character is half-yokai. They're most commonly referred to as "demons" here, along the lines of a succubus, goblins, imps, and the like in western stories. (By contrast, "oni" tend to be more of a "monster," generally like ogres.)
It was a really cool exhibit-- as you'll see in the video! We didn't capture quite everything, of course, but I think you'll enjoy it.