Most of the appeal in visiting D.C. has to do with seeing our sweet friends who actually feel like family. Seeing Pam and Dave and their Irish-lad-twins* (Brendan and Liam) fills my heart to the brim. Brendan and I had the best time playing in the tree house, seeing who could swing higher (him), and admiring the fall foliage until we were attacked by a water-gun sniper (Liam) and were forced to run inside. Although I've had my fair share of positive and negative tree house experiences, I can't deny my love for them. They are magical.
*they even do Irish Step Dancing.