Vacation exchange: My Washington DC/VA for your USA, UK, Europe, etc. (WFC Metro - Orange line ) 2bd

I am a semi-retired professional, looking for interesting home exchanges around the world. I am an experienced home exchanger in Europe and the US. I'm looking for interesting, unique exchanges in US locations (such as New York City, Seattle, Santa Fe, Maine, etc.), or in Europe or the UK, but will consider anywhere in the world. I prefer exchanging with someone like myself who is either retired, or a writer or artist, who can exchange for 3-8+ weeks, depending on the location, but I will consider shorter swaps, depending on timeframe and location. I have a lovely open 2 level, with 2 bedrooms (queen and double beds), a small loft study with twin day bed, and 2 1/2 baths. I'm within a 5 minute walk from the West Falls Church VA Metro stop (WFC) on Washington DC's Orange Line. A subway ride will take you to the free Smithsonian museums, to art galleries, DC theatres, parks, great restaurants, the DC Zoo, etc - all that the DC area has to offer. From my home you can also walk to restaurants (Indian, Thai, Afghan, Italian,...), to a grocery store, a bakery, Starbucks, a pharmacy, etc. The subway across the street will take you to/from National Airport, or there is a metro shuttle directly to Dulles Airport. There really is no need for a car while you're here. If you're interested, please tell me a bit about yourself, the location of your home and have some photos to share. I am looking for a comparable, very neat, very nice, clean house/flat/apartment for exchange. I am a non-smoker and only exchange with other non-smokers. (Note: craigslist has changed how they display photos. To see all photos, hover over each thumbnail.)