Photos: Hell hasn't frozen over, but Chicago certainly has

  [caption id=“attachment_1326725” align=“alignleft” width=“940”]  Ice builds up along Lake Michigan at North Avenue Beach as temperatures dipped well below zero on January 6, 2014 in Chicago, Illinois. Chicago hit a record low of -16 degree Fahrenheit this morning as a polar air mass brought the coldest temperatures in about two decades into the city. Scott Olson/Getty Images/AFP[/caption]   [caption id=“attachment_1326737” align=“alignleft” width=“940”]  Ice builds up along Lake Michigan as temperatures dipped well below zero on January 6, 2014 in Chicago, Illinois. Chicago hit a record low of -16 degree Fahrenheit this morning as a polar air mass brought the coldest temperatures in about two decades into the city. Scott Olson/Getty Images/AFP[/caption]   [caption id=“attachment_1326743” align=“alignleft” width=“940”]  Ice builds up along Lake Michigan at North Avenue Beach as temperatures dipped well below zero on January 6, 2014 in Chicago, Illinois. Chicago hit a record low of -16 degree Fahrenheit this morning as a polar air mass brought the coldest temperatures in about two decades into the city. Scott Olson/Getty Images/AFP[/caption]   [caption id=“attachment_1326745” align=“alignleft” width=“940”]  A commuter crosses the Chicago River during a sub-zero trek to their offices in the Loop on January 6, 2014 in Chicago, Illinois. Temperatures in some areas of the city dipped to -16 during the morning commute. A polar vortex sweeping through the Midwest has brought dangerously cold temperatures not seen in about 20 years. Scott Olson/Getty Images/AFP[/caption]   [caption id=“attachment_1326747” align=“alignleft” width=“940”]  Commuters make a sub-zero trek to offices in the Loop on January 6, 2014 in Chicago, Illinois. Temperatures in the city dipped to -16 degree Fahrenheit this morning on the heals of a polar vortex that has swept into the Midwest bringing with it dangerously cold temperatures not seen in the area in about 20 years. Scott Olson/Getty Images/AFP[/caption]   [caption id=“attachment_1326751” align=“alignleft” width=“940”]  Mist rises from Lake Michigan as temperatures dipped well below zero on January 6, 2014 in Chicago, Illinois. Chicago hit a record low of -16 degree Fahrenheit this morning as a polar air mass brought the coldest temperatures in about two decades into the city. Scott Olson/Getty Images/AFP[/caption]   [caption id=“attachment_1326755” align=“alignleft” width=“940”]  Mist rises from Lake Michigan at North Avenue Beach as temperatures dipped well below zero on January 6, 2014 in Chicago, Illinois. Chicago hit a record low of -16 degree Fahrenheit this morning as a polar air mass brought the coldest temperatures in about two decades into the city. Scott Olson/Getty Images/AFP[/caption]   [caption id=“attachment_1326757” align=“alignleft” width=“940”]  Mist rises from Lake Michigan as temperatures dipped well below zero on January 6, 2014 in Chicago, Illinois. Chicago hit a record low of -16 degree Fahrenheit this morning as a polar air mass brought the coldest temperatures in about two decades into the city. Scott Olson/Getty Images/AFP[/caption]