Former castles of the three-comma club, now on the market
Although Warren Buffett has lived in the same home since 1958, other billionaires swap houses the way the rest of us change light bulbs. Most of the billionaire-owned properties currently for sale were purchased or completed in the last five years; a few have never been lived in at all. Agents say the ultra-wealthy’s wandering ways are easy to explain: They want only the best