paul allen real estateRealtor.com, Stephen Lovekin/Getty Images
Microsoft cofounder Paul Allen lives a pretty fabulous life. With an estimated net worth of $18 billion, he's the 26th wealthiest man in the world, and he has the fancy yachts, planes, and lifestyle to prove it.
Allen also collects a ridiculous amount of properties across the globe. 
From a hilltop mansion on the French Riviera to an entire island off the coast of Washington, Allen has made his fair share of blockbuster purchases over the years.

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