Pilgrimage has long been an important facet of Japanese religion, and Shinto features pilgrimages to shrines, which are known as "junrei". A round of pilgrimages, whereby individuals visit a series of shrines and other sacred sites that are part of an established circuit, is known as a "junpai". An individual leading these pilgrims, is sometimes termed a "sendatsu". For many centuries, people have also visited the shrines for primarily cultural and recreational reasons, as opposed to spiritual ones. Many of the shrines are recognised as sites of historical importance and some are classified as UNESCO World Heritage Sites. Shrines such as Shimogamo Jinja and Fushimi Inari Taisha in Kyoto, Meiji Jingū in Tokyo, and Atsuta Jingū in Nagoya are among Japan's most popular tourist sites. Many shrines have a unique rubber-stamp seal which visitors can get printed into their "sutanpu bukku" or stamp book, demonstrating the different shrines they have visited.