Flashy and fast-fisted, Sugar Ray Leonard is widely regarded as the greatest boxer of all time.

The retired American champion has an unprecedented five world titles in five weight classes to his name and has been part of some of the most memorable fights in history.

Leonard was a dominant force on the amateur boxing circuit in the 1970's, winning 145 of his 150 bouts before announcing his retirement after winning an Olympic gold medal at the 1976 Games in Montreal.

The then 20-year-old fighter had planned to go to university but instead turned professional to help support his family after his father became ill.

Leonard won his first professional fight in 1977 and over the next two decades, went on to defeat some of the biggest names in boxing – Wilfred Benetiz, Roberto Duran, Thomas Hearns and Marvin Hagler.

To the world, he was a golden-fisted champion, but in his first autobiography released this week, Leonard has revealed details of personal battles beyond the ring.

In the book, The Big Fight: My Life In and Out of the Ring, the now 55-year-old sporting icon writes about his drug and alcohol use and most shockingly about the sexual abuse he suffered at the hands of a former Olympic trainer.

American architect Daniel Libeskind is one of the world's leading and most prolific designers.

Incredibly, he has spent most of his life as an academic and only completed his first building 13 years ago, at the age of 52.

But Libeskind hasn't stopped since and now travels the world with his wife and business partner Nina working on more than 40 projects in 15 countries that stretch from Italy, Germany and Serbia to Singapore, South Korea and Brazil.

While Libeskind is probably best known for being responsible for the master plan of the World Trade Center, his reputation was first cemented with the design of the Jewish Museum Berlin in 2001.

He is set to complete another landmark project in Germany later this year – his redesign of the Military History Museum in Dresden.

Libeskind, who is of Polish-Jewish descent, is transforming the museum into a 20,000 square meter space that features Germany's military might but also reflects the nature and consequences of war.