Complex sentence: The phrase "virtual tour" is often used to describe a variety of video and photographic-based media.panorama indicates an unbroken view, since a panorama can be either a series of photographs or panning video footage.
Split into simpler sentences: The phrase "virtual tour" is often used to describe a variety of video and photographic-based media. Panorama indicates an unbroken view, since a panorama can be either a series of photographs or video footage.