Google seems to be testing overlaying on top of the web search results the popular destinations feature and details you’d normally get in Google Travel. Previously, Google would show you a snippet and when you clicked in for more, it would take you to Google Travel.
Khushal Bherwani shared a video of this on Twitter of Google testing an overlay, I currently still do not see the overlay but rather am taken into Google Travel’s site. Here is his tweet:
Google has been testing overlays a lot in web search on mobile. I guess Google rather keep people in search over those verticals?
Forum discussion at Twitter.