Any known glitches for Civ 5?
In Civilization 5 when you make a research agreement with an AI then go to war with that player, you get the free tech instantly.
Are there any other abuses like this?
The Angkor Wat only affects the city it's built in, not every city like the description says. It went from being an incredible wonder to worthless in about 10 minutes it took me to figure that out.