Why Are So Many Beautiful Towns Painted the Same Color?

#16: Sidi Bou Said — TunisiaPerched on a cliff overlooking the Mediterranean, Sidi Bou Said shares its famous blue-and-white palette with the Greek islands, but for its own reasons. The whitewashed buildings were practical, reflecting the harsh sun and keeping homes cool. The brilliant blue used for doors, shutters, and gates helped cut the glare.