Hillwood was heiress Marjorie Merriweather Post's Washington residence from 1955 until her death in 1973. Today, the 25-acre estate in northwest Washington displays her estimable collection of 18th-century French decorative arts and Russian imperial art, such as 19th-century Fabergé eggs, along with more personal items, such as her designer wardrobe. The botanical attractions, including a formal French landscape and Japanese gardens, are also worth the trip. And since the gift shop sells replicas of many of her priceless objects (brooches, the Fabergé eggs), it's one of the most interesting museum shops around.