Together they have, for instance, understood that Ghanaians prefer liquid to solid soap for hand-washing and are more likely to wash their hands before eating if the soap does not smell too strong (since Ghanaians often eat with their hands).

ECONOMIST: Just add soap and water

Where Pi breaks ground is its reinterpretation of deep dish, with a lot of cornmeal added to the crust, less buttery than the Chicago version, and much more coherent, so that you can pick up a slice and eat it fairly neatly with your hands, rather than the fork and knife casserole version of the Windy City.

FORBES: Obama's Favorite Pizza Finally Comes to DC

But despite the enticing swimming pool at the Winter Palace Hotel, the thrilling felucca ride on a windy Nile afternoon with sails billowing, and the bountiful dinners of hummus and salads all the more delightful for being actively encouraged to eat with one's hands, one pressing question remains.

BBC: Travel with children: The night train to Luxor