Sylvester Stallone, who turns 79 today and is still thriving decades after donning Rocky's gloves. His secret? Acting his age ...

Muhammad Ali, one of the best known and most successful boxers of all time, had a training camp in Schuylkill County.

Stay up to date with Muhammad Ali (American, 1942 - 2016) . Discover works for sale, auction results, market data, news and exhibitions on MutualArt.

Muhammad Ali Center is ranked #2 out of 10 things to do in Louisville. See pictures and our review of Muhammad Ali Center.

Stay up to date with Ali Cherri (Lebanese, 1976) . Discover works for sale, auction results, market data, news and exhibitions on MutualArt.

Stay up to date with Ali Kazim (Pakistani, 1979) . Discover works for sale, auction results, market data, news and exhibitions on MutualArt.

Stay up to date with Ali­cia Quaini ( 1977) . Discover works for sale, auction results, market data, news and exhibitions on MutualArt.

Get up to the minute entertainment news, celebrity interviews, celeb videos, photos, movies, TV, music news and pop culture on ABCNews.com.

Stay up to date with J. Sultan Ali (Indian, 1920 - 1990) . Discover works for sale, auction results, market data, news and exhibitions on MutualArt.