pilgrimage to sacred places
Traditional religious pilgrimage to holy sites such as shrines, temples, or other sacred locations.
The pilgrimage to the 88 sacred sites of Shikoku is a once-in-a-lifetime experience for many people.
visiting real-life locations from anime, manga, etc.
Colloquial otaku term for traveling to places that appear in anime, manga, games, or other media. Often called 'anime pilgrimage' in English.
I went on a pilgrimage to the town that was the setting for that anime.