We have a 20-something relative coming for Christmas who would like to go into the District, have lunch, see a museum or art gallery or National Cathedral. She's been to many of the museums (Air & Space, Art, Holocaust) so I was trying to think of something a bit different...maybe in the Dupont Circle Area (so we could maybe do lunch at Bistro du Coin). What interesting place is in this area? and is there ample parking nearby? (I no longer will use Metro) It shouldn't be too congested downtown on 12/24 since Federal employees are off, right? or should we avoid that area and go to National Cathedral and are there great places in that area for lunch? TIA for your help.