Billionaire and real estate developer John Goff plans to sell his family retreat at Eagle Mountain Lake in Fort Worth to the highest bidder from around the world at an online auction, which will be held in Hong Kong.

The retreat, called Mariposa del Lago, or “Butterfly of the Lake,” has been a longtime getaway for the Goff family, which was deeply involved in the selection of the materials with renowned Fort Worth and Dallas architects Richard Drummond Davis, Davis Lewis and Joseph Minton.