Nice panoramas, indeed - though they download a little bit slowly (sure higher resolution is needed for nice, detailed zooming...)
There is a "virtual tour" of my city but made in Java - and if you turn on the "Info" layer, it gives a nice interactivity to it as well (for some reason, in my computer the text popups are popping under...)
With the same Java technique was the virtual reconstruction of the Roman Baths (Bath, England) presented so it is also a good technique for 3D modelling (unfortunately the wensite is currently not available foรถr the domain it was hosted at has expired but I hope we can "revive" it soon...)