Click on Go Fullscreen on the viewer window toolbar for the REALLY big picture,
Click and drag in
the viewer window to shift your viewpoint, to zoom in and out use the magnifying
glass icons on viewer toolbar.
Click on red hotspot circles in the panorama to go to that location, or click on the buttons on the map.
The toolbar also has hide hotspot controls.
spherical panoramas are the closest thing to actually being there! Just click on
the Go Fullscreen button to be there!
If you cannot see a panorama above, visit the panorama help page for details of how to get the free Java update for your computer.