A progress bar will indicate the percentage loaded until completed. While loading
it will often be gray. After fully loaded, the panorama will be in color.
To get started, go into full screen mode.
Use the mouse scroll wheel (forward, backward) to zoom in and out.
Click and hold mouse cursor and move (usually slowly) left, right, up, and down to
pan the image.
While panning, click anywhere in the image to immediately stop the panning action.
You also can use the following buttons to zoom and pan:
It is easy to spot Twin Peaks, Sutro Tower, Golden Gate Bridge, and the the SF-Oakland
But can you find the domed City Hall?