Surreal estate: Louisa Duemling home is D.C.'s most expensive on market

Seller: Louisa Copeland Duemling Asking price: $19.5 million Details: Washington has a new most expensive home topping the market. Tucked back in the Northwest neighborhood of Kent, the five-bedroom, 10,000-sq.ft mansion was for 17 years the home of Dumeling, a DuPont heir and active philanthropist, and her diplomat husband Robert Duemling, an ambassador to Suriname and later director of the National Building Museum who died last year. Three fire places, a pool, circular driveway, guesthouse. Th...