"Hmmm, maybe I was a little premature in building that aqueduct in that city. It's not goiing to grow at all. No problem, I'll just sell... WTF!? WHY CAN'T I SELL IT?!!!!" This was me earlier today, upon realizing for the first time ever that aqueducts can't be sold off. I've simply never had to before. This is really bad. If it requires maintance, I should be able to sell it, don't you think? It seems my civ is being run by the British Columbia NDP.