Walking, being culturally or historically, is the most basic form of tourism and the one in which most of the rest niche tourism is based. Undertaking tours of individual sites tend to be a short affair and can be done little more than an hour, longer tours through multiple sites can last more than a day though.
Walking tours employ guides that have extensive knowledge of the sites visited allowing them to provide historical, technical, and curious background information on each one of them and a variety of related subjects. Walking tours are the primary cornerstone in which the whole touristic industry is based on.
A recent trend is to spice up every walking tour by performing a spectacle with actors, costumes, and elaborate scenery to act as its own effective historical recreation of some of the most salient part of the historical background being narrated by the tour guide, offering both information and an entertaining spectacle to the tour attendants.