https://en.wikipedia.org/wiki/Pilgrimage
Buddhist
https://www.buddhanet.net/e-learning/buddhistworld/about-pilgrim.htm
https://www.burmese-art.com/blog/four-holy-buddhist-pilgrimages
Hajj: Muslim
https://www.islamichelp.org.uk/what-we-do/seasonal/qurbani/what-is-hajj/
Hindu pilgrimage sites in India
https://en.wikipedia.org/wiki/Hindu_pilgrimage_sites_in_India