All tours have to be “hosted” by some server in order to be viewed by the public. Google virtual tours are tours that we create and host for free using Google servers. However, so far the Google-hosted tours have limited interaction, that is moving back and forth (following the arrows) and zooming in and out.
However, when people say a Hosted Tour, they mean a tour hosted away from (or in addition to) Google servers. With more interactive content such as clickable hot spots which then reveal more information such as Text, Photos, or even video content. In most cases, even the directional arrows can be changed and music can be added. The tour (spherical images) can be set to start rotating by themselves or movement automatically / sequentially move into the next scene/image until the viewer interacts with the current active image.
