DC may sound easy but its a great place to be anytime you go there. Especially in October. If you can expand a little beyond DC, you just upped your travel adventure. Maryland has alot to offer. Its great. Like DC and Baltimore, the homes are pretty much brick homes, and buildings, like the old brick, Excellent 4 seasons, the foilage smells great. In Maryland, you can go drive around the Chesapeake bay area, lock in on some real crabs and other seafoods like clam chowder, oysters, clams. Pizza and submarine sandwiches are great all over the region. Baltimore has its famous inner harbor, with fancy restaurants and the USS constellation docked there. Annapolis has the U.S. Naval Academy. You get tired of that, go into Virginia to Mount Vernon, or Williamsburg, or WV to Harpers Ferry, all very historical. Never a dull moment for a non rev traveller. From the likes of all the travel you have done, you have nothing to prove to anyone in going somewhere farther that a jet can take you. It's all about the fun you have, not how many foreign miles you have racked up. I quit counting and just go for myself to wherever I want to go. You can check out Philly or NY by rail easily from DC.