Every year in Belgrade, Serbia, fierce city rivals Red Star Belgrade and Partizan Belgrade face of in a football match that is more about the fans than the actual game.
Miami's Liberty City is football's Mecca, home to NFL legends. But the biggest rivalry in this city isn't exactly big-it all starts with a hard-hitting squad of 6 year-olds.
Bukom is a town too small for a map. But somehow, this tiny, slum village on the coast of Ghana has produced more world champion boxers per capita than anywhere else in the world.
The tiny village of Iten, Kenya is home to the fastest runners in the world, more record-holders than anywhere else... and a pair of testy twins from New Zealand.
Overcrowded and underfunded, Luzira is home to Uganda's only maximum-security prison -- but also an elaborate soccer league; one that challenges the culture of imprisonment.
Hockey's "Gibson Cup" is as old as the sport itself, and in a quiet Michigan town where the game was first born, two teams have been battling for it for over 100 years.
As Cuba and America embark on a seismic shift, Cuban ballplayers are caught in the middle: forced to wait on diplomacy or risk their lives for their chance at the Majors.