According to the BNW info page, there are apparently tourism bonuses if certain combinations of Great Works are matched together or with certain slotted wonders and buildings. Certainly it makes the GW swapping in diplomacy even more relevant. However, I haven't seen much (if any) info on the exact combinations-- does anyone know? Presumably, certain Great Works match with wonders that directly relate to them (i.e. The Globe and Macbeth/William Shakespeare, Broadway and Gershwin, etc.). Is there any definitive info on these bonus combos? I doubt all of these combinations will be known until enough people play through BNW and discover them. Should be fun though!