Use your cursor or scroll with the controls at lower left. Have fun! (from 2016)

Image taken with Google Street View App on an iphone;
JPG downloaded from Google photos
Plugin: 360 Panoramic Image Viewer

Here’s the original:

Note that many plugins did not work, including PanoPress, WP Photo Sphere, WP-VR view. 360 Panoramic Image Viewer is a premium plugin ($25)