rochambeau. >> the lines are still long, the most well attended park in the country. >> we have over a million visitors in a year, the most visited historic home in america. >> the other thing that is important to bring out, when the government shut down, they tried to shut down that park. they said pick up the barriers. we're privately run. we don't need any federal aid. they had to come back and grab the bike racks and let the people into the parking lot during this shutdown. it is miraculous. if anybody wants to go, all ages. this is an interactive museum inside which we'll see next hour. >> washington secret six getting everybody excited about living history. >> it's wonderful. good stuff. christmas trees, gift giving are just a few of the great traditions we associate with christmas. but where do these customs come from?