Hi Guys i Think you already know ?
That Google Photos have 360 viewer and support
so you can share your Equiangular images Private to Friends (email) , Circles or Public
here are some screenshots from Picasa3 on a Windows Desktop
Click upload
Login to your Account
Upload to existing Album or create a new one
Now you Can share your Equiangular images to friends, cirkels or public
If you made a note for Google+ it will be there automatically
We made a link on Google+ to the images on Google Maps to make the place easy to find
If You are on Linux or do not have Picasa 3 installed it is easy to do the upload in the Browser also
Regards Svendus