David Bowie, Prince and Muhammad Ali were among those we lost this year.
A procession Friday toured landmarks in Muhammad Ali's life, including his childhood home and the gym where he began his training, as about 100,000 lined the streets of Louisville, Kentucky.
Live coverage of the funeral of Muhammad Ali in Louisville, Kentucky from ABC News.
See photos as thousands attend the memorial and procession to lay Muhammad Ali to rest in his hometown of Louisville, Ky.
Some 14,000 people attended a traditional Muslim prayer service at Freedom Hall where Muhammad Ali was remembered Thursday as a global icon and world leader.
Thousands of fans, dignitaries and faithful from across the globe filled a Kentucky arena Thursday to honor Muhammad Ali.