A passing lane (North American English) or overtaking lane (British, Irish and Australian English) is the lane on a multi-lane highway or motorway closest to the center of the road (the central reservation). In some countries, lanes are described as being on the 'inside' or the 'outside' of a road - which one the passing lane is varies.
When Italian handyman Vincenzo Peruggia stole the Mona Lisa from the Louvre in 1911, he never could have guessed her absence would be the very thing that made her the most recognizable painting on the planet.
He went to the gallery in the white smock that all the employees there wore and hid until it closed for the night when he removed the Mona Lisa from its frame. When the gallery reopened he walked unobtrusively out with the painting under his smock, attracting no attention, and took it to his lodgings in Paris.