Photos: Tango World Cup
APTOPIX Argentina Tango
A couple dances during the opening day of the annual festival and championship in Buenos Aires, Argentina, Tuesday, Aug. 14, 2012. The two-week long event offers more than 500 free dance lessons, concerts and recitals. Hundreds of professional dancers will compete in the championship and teach many the eight basic steps of the dance in the city where it was born. (AP Photo/Eduardo Di Baia)