Churches where I live tend to be built or really nice stone, with interesting architecture. There’s real craftsmanship involved. Beautiful detailed ornamentation. Stained glass. They’re often built at some of the highest points, on top of hills. Some of the old churches have been sold and are used for other things like venues. I kind of wish they built more buildings like that today.

Also it can be an opportunity to experience different cultures. While my city is mostly western Christian churches, the occasional “onion dome” of an eastern Orthodox church, the miniret of a mosque, or the bright yellow of the local temple is interesting.

I’m sure some tourists are there for religious reasons, but for a lot of people on vacation somewhere churches are just interesting buildings.