Learn more about four abandoned mansions for sale across the US — why they're still empty. In Tigard, Oregon, about 10 miles outside Portland sits a 9,052-square-foot, seven-bedroom house that's ...

From the Spanish holiday home of Saudi royalty to the extravagant wastelands of London's Billionaires' Row and the burnt-out remnants of the Carnegie mansion in the US state of Georgia, these mansions ...

The largest home for sale in the US is a whopping 70,000-square-foot abandoned Philadelphia mansion. To offer some context, that's about 15,000 square feet larger than the White House. We teamed ...