I've read twice now about a short story in which time travel is a vacation thing, with destinations offered at the travelers's choice. The protagonist realizes that he could attend the passion of Jesus Christ. While there he finds that all the other attendants are time travellers as well.
I've first saw this mentioned about 25 years ago in an edition of GEO magazine (can't remember which one) in an editorial about ... I think it was physics, time travel, but could be something else entirely. The second time I saw it referenced in the novel "Jesus Video" by Andreas Eschbach: https://en.wikipedia.org/wiki/Jesus_Video