1. Mel Gibson’s Home – Malibu, California

On the Market Since: 2010
Total Area: 6,500 square feet 
Initial Value: $14.5 million*

Speculation is high that Prince Harry himself is keen to purchase Mel Gibson’s five-bedroom, five-bathroom, French country Malibu home – but so far this pricey mansion remains unsold more than a decade after Gibson listed it. He first listed it for $14.5 million in 2010. One year later he dropped the price to $12.8 million.

By November of 2011, the price continued to fall to $11.8 million, marking a whopping $1 million drop in eight months. Gibson removed it from the market until 2019, when he put it back up for the original $14.5 million asking price.

Gibson first bought the mansion in 2008 from David Duchovny and Tea Leoni, an actor who has starred in shows like Fox’s The X-Files. Gibson then took the ocean-view estate and gave it his own personal touch, highlighting some of the estate’s “Old World” characteristics. It’s likely that high property taxes are to blame for the lack of sale.