Software company Atlassian's 38-year-old Co-founder Mike Cannon-Brookes and his wife, Annie, have bought Australia's most expensive mansion, Fairwater, for a reported $73 million (nearly ₹530 crore). Built in 1882, the estate bought by Mike is spread across 1.12 hectare. Mike and Scott Farquhar founded Atlassian in 2002 using $10,000 from their credit cards to fund the company.