Board Thread:Plants vs. Zombies 2: It's About Time/@comment-7234182-20150322064110/@comment-30582690-20150402180517

look what wikipedia said about lost cities: "'''Cities may become lost for a variety of reasons including natural disasters, economic or social upheaval, or war." and " A   lost city  is a settlement that fell into terminal decline and became extensively or completely uninhabited." '''

so, lost city might not be just a jungle or something, it could be a deserted place. link here:  http://en.wikipedia.org/wiki/Lost_city