The Most Expensive Homes Ever Built

Palo Alto Loire Chatueau 1 of 16

First up on this list of the world's most expensive home is Palo Alto Loire Chatueau. This Silicon Valley mansion is owned by Yuri Milner. This is fitting because the Russian venture capitalist became a billionaire through the tech industry. He has invested in the hugely popular websites, Facebook, Twitter, and the streaming music service, Spotify.

This French-inspired chateau measures 25,000 square feet and sits on 11 acres of California's Silicon Valley. There is some question as to exactly how much Milner paid for Palo Alto Loire Chatueau. First reports were around $75 million, with the current estimate being closer to $100 million dollars.