Have $725 million to spare? Well, northern Texas' historic Waggoner Ranch – established in 1849 and one of the largest ranches in the nation – could be yours. The 510,527-acre property features 58 homes, thousands of cattle, hundreds of horses, nearly 30,000 acres of farmland, 1,200 acres producing oil wells, large lakes and wildlife. Also included is Santa Rosa, the former home of sculptor and Waggoner Ranch heir Electra Waggoner Biggs, who died in 2001. For more information, visit TopTenRealEstateDeals.com or Briggs Freeman Sotheby's International Realty.