+1 tourism?

I was wondering how easy (or not) it would be to have a building yield of +1 tourism (as well as other benefits I can add). I've only seen the tourism yields as a percentage (like the hotel) or as buildings built with faith gaining +2 tourism via Sacred Sites.

Does anyone know (or can work out) how to do it? For reference, in Anno Domini, rather than the Lion House (a late addition to cities with colosseums, but requiring limited resources) just having a fairly bland +2 happiness, I wanted them to have +1 tourism in addition. There'll be another building which will have +50% tourism output that comes with the same late tech, so I don't really want to double-up with the same effect.

I'd say take a look at LeeS' building guide for the specifics, but this should be doable.

The Eiffel Tower wonder does this by setting a TechEnhancedTourism value, and setting the EnhancedYieldTech to be the same as its PrereqTech.

This gives the wonder +12 tourism as soon as it's unlocked.

Tourism isn't a proper yield, so you'd need to use the Community Patch to get full flexibility.

Thanks a lot guys! I'd forgotten about the Eiffel Tower and the manner in which they've done that should work for the lion house.