Quicktime
Currently you are viewing the panoramas on the Quicktime Player. Click into the panorama, hold down the mouse button and draw you can rotate the panorama now. You may zoom in or out by using the + and buttons below the panorama.
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Fullscreen
A click on the "Fullscreen" tab above the right of the panorama generates a full screen version of the panorama.
Flat
"Flat" displays the panorama in a flat, spherical version.
Different Player
By clicking the tab "Player" you may try a different interactive version.