PARIS - SEP 13 - Passengers await the arrival of a train   on Sep 13, 2011, in Paris, France
Highline Park, NYC
Union Turnpike musician
Queens, New York
LONDON, ENGLAND - FEBRUARY 28:  Two girls carrying Cellos wait for a train on London Underground's Westminster Station on February 28, 2012 in London, England. London's Underground system is the oldest of it's kind in the World, and carries approximately a quarter of a million people around it's network every day.  (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - FEBRUARY 28:  Two girls carrying Cellos wait for a train on London Underground's Westminster Station on February 28, 2012 in London, England. London's Underground system is the oldest of it's kind in the World, and carries approximately a quarter of a million people around it's network every day.  (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - FEBRUARY 28:  Two girls carrying Cellos wait for a train on London Underground's Westminster Station on February 28, 2012 in London, England. London's Underground system is the oldest of it's kind in the World, and carries approximately a quarter of a million people around it's network every day.  (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - FEBRUARY 28:  Two girls carrying Cellos wait for a train on London Underground's Westminster Station on February 28, 2012 in London, England. London's Underground system is the oldest of it's kind in the World, and carries approximately a quarter of a million people around it's network every day.  (Photo by Dan Kitwood/Getty Images)
Währinger Straße, Wien (Vienna)
Who said rush-hour?
PARIS - SEP 13 - Passengers await the arrival of a train on Sep 13, 2011, in Paris, France
PARIS - SEP 13 - Passengers await the arrival of a train   on Sep 13, 2011, in Paris, France
PARIS - SEP 13 - Passengers await the arrival of a train on Sep 13, 2011, in Paris, France
See photo in original gallery.