GooglyBoogly
Freakamongus
EDIT:
The number of Bonuses could be tracked, if it was 3 or more, the building text in the list could be modified to 'yellow/gold' or something ;-)
But I've yet to see a 3 bonus/penalty building.
One building with 5 bonuses immediately springs to mind and that is a fully wonder (with state religion) maxed out cathedral.
It would gives
+2 hammers (Apolisitc Palace)
+2 Beakers (Uni Sankore)
+2 Gold (Spiral Minnaret)
+5 Culture (Sistine CHapel)
+2 Happy (state religion)
That is Alotta SPace!