It is also home to the largest slum in Africa and faces high levels of street crime and of late even flying toilets!

BBC: Joseph's odyssey

Those planning on flying this holiday may experience short-term side effects from fatigue and increased cortisol levels, the report details.

FORBES: Why Holiday Travel Makes You Dumb

You have the overhead map, the gradually unlocked levels, the mini-boss castles and the boss castles, the flying ships and all the old characters we grew up on.

FORBES: Move up http://i.forbesimg.com t Move down