Great, you can now try out the new Google+ design that will soon coming to you.
Just go into settings in Google+ (on the web), click "Manage Google+ activity" then just click the search box on the top.
As long as you stay inside Google+ now, you can explore the new layout and features. Very nice. A much better Google Photos integration (but missing some features) if you share a photo.
I like the new look a lot. And you'll see a change in the directions. It's all about topics. Finally!