That's a tough question. I live in Virginia, right across the river from DC, so I have the Smithsonian museums right here. The American History Museum is at the top of my list, with the First Lady Dresses exhibit and the Hope Diamond, and then there's the National Portrait Gallery, and a small museum, Hillwood - the home of Marjorie Merriweather Post. Hillwood is a decorative arts museum with mostly Russian and French art objects, including two Faberg eggs.
The Victorian & Albert Museum in London would have to be my favorite overseas museum. It has a wonderful clothing exhibit too.
One of my favorite places to shop are gift shops at the Smithsonian, lots of neat stuff, great books and unique cards.
