Natalia Kaczmarek has been an integral part of Team Poland's success on the track in recent years, having helped the 4 x 400 ...

The U.S. bid and a British bid for 2035 are the only ones on the board, making it all but certain they'll win.

Watch a clip from 'The Track,' a documentary about Bosnian luge athletes who train on an Olympic run damaged during the war ...