Where: 12414 Glen Road, Potomac
Listing Price: $3,500,000
Time on the Market: one month
Details: This estate was featured on an episode of HGTV’s Dream Home series and in Oprah’s O at Home magazine. Built in 2002, the contemporary offers a great room with 28-foot cathedral ceiling, limestone floors, and two fireplaces. There is also a library with Brazilian cherry floors; a master bedroom with a cathedral ceiling and two covered decks; an exercise room; a home theater with stadium seating for 14; a recreation room with a kitchenette; and a home-automation system that controls the security system and heating and cooling. Set on more than four acres, the house also has a three-car garage, hot tub, and pool with fountains.