Religious tourism usually involves followers of particular faiths visiting locations that some people regard as holy sites. In many instances, religious tourists journey to these sites on the anniversaries of events that are of importance to followers of specific religions. Traditionally, those involved in religious tourism were referred to as pilgrims but in modern times that term that is not as widely used since many non-religious individuals also embark on trips to holy sites because many of these sites are of cultural or historical as well as religious interest.