Mark Zuckerberg bought a castle in Ireland to add to his real estate collection. Here's a look at the rest of his portfolio.

Meta CEO Mark Zuckerberg has purchased over 10 properties.

Ed Mulholland/Zuffa LLC Mark Zuckerberg has been quietly snapping up massive chunks of real estate for years.

The tech billionaire has bought hundreds of acres of Hawaiian land.

He also recently bought a castle in Ireland.

Mark Zuckerberg has amassed a real estate portfolio that has easily exceeded $100 million, but, until recently, he kept it within the confines of the US.

A spokesperson for Zuckerberg confirmed to Business Insider that he and his wife, Priscilla Chan, purchased a 200-year-old castle in Waterford County, Ireland.

"Mark and his family are excited to continue caring for this historic home and look forward to spending time in Ireland, where Meta maintains its international headquarters," Zuckerberg's spokesperson, Brian Baker, said in an email statement to Business Insider.

The purchase price is unknown; however, The Irish Times, which first reported on the sale, estimates Zuckerberg paid between 20 and 30 million euros — or between $23 million and $35 million.

A drop in the bucket for the Meta CEO, who has an estimated net worth of $192.4 billion, according to Forbes .

The castle is just the latest addition to Zuckerberg's portfolio, which includes a doomsday bunker in Hawaii and a waterfront mansion in Miami .

See what other Zuckerberg properties are in his portfolio.

Zuckerberg owns a residential compound in Palo Alto.

Google Maps It's no surprise that a tech titan has more than one property in Silicon Valley.

The Meta CEO owns five homes in the Crescent Park neighborhood of Palo Alto.