We've lived in the Mount Vernon section of Fairfax County for over 20 years. Over a decade ago a homeowner started to build something big behind his little Cape Cod house on Collingwood Road, about 1/2 mile from ours. That something turned out to be a much larger house. When he was done, he tore down the Cape Cod. The big house is actually pretty distinctive looking. This time of year, however, it's VERY distinctive looking. The homeowner has turned his house and yard into a genuine Christmas lighting extravaganza. This can make for traffic problems, especially when idiots pull over and let their kids walk along the narrow road in the dark. A few years ago he added a low wattage radio station so that people who park in front of his house can listen to Christmas tunes as they check out the lights.
This actually started out as a modest lighting display but he has added to it every year. Sometimes the lights go out then come on sequentially, sometimes he has flashing white lights distributed among the steady colored lights. And every year is different. If you are in the area, take a meander down Collingwood Road to check this out. /It's about 4 1/2 miles south of Old Town Alexandria on the Mount Vernon Trail and GW Parkway.