When billionaires have free time, they often pursue extravagant hobbies such as collecting classic cars or airplanes. However, the number one popular hobby of the richest tycoons will surprise you.

Wealth-X, a company that conducts research on ultra-wealthy individuals, recently released its annual billionaire census. The report explores the trends and habits of the world’s richest people. The investigation tracks billionaires’ passions, interests, and hobbies, giving a close-up view of how the suρer-rich enjoy their free time.Doing charity is the most popular hobby of the richest billionaires. More than half of all billionaires pursue philanthropic activities. This generosity does not surprise many people thanks to a series of programs and organizations, such as The Giving Pledge launched by Bill Gates and Warren Buffett. Bill Gates and Warren Buffett pledged to give away more than half of their assets to charity during their lifetime.“The Bill and Melinda Gates Foundation and The Giving Pledge instill philanthropic responsibility in billionaires, helping them use their own wealth to make a difference in the world,” Wealth-X.Here are the 15 most popular hobbies and passions among the wealthy and the percentage of billionaires who participate in these activities, according to Business Insider.

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