Tony Stewart’s Hidden Hollow Ranch in Indiana has returned to the market for $18.9 million. The 415-acre property has a 19,713-square-foot main house with six bedrooms, an 8,700-gallon aquarium, indoor stream, bowling alley and golf simulator.
David Letterman owns a 2,700-acre ranch in Montana that he bought in 1999, along with properties in Indiana and upstate New York. The former late-night host has spoken about leaving behind the pressures of show business and returning to Indiana with his famil…