The Appalachian Trail

Running from Georgia to Maine, this is one of the premier hiking trails in the world, running through incredibly beautiful scenery of the Appalachian Mountains. To reach it from Indian Valley is about an hour's drive north, but worth it. The existence of a resource like this makes me glad the federal government can protect the wilderness from development when they want, and the slowness of bureaucracy can keep them from backpedaling when they don't want to (like, say, when an environmental nightmare president takes over for 8 years...) That's right, it's still here after all these years!

Historic Philadelphia

The old adage about never going to see what's in your own backyard remains true. I haven't seen the Liberty Bell since I was in high school. But I can hop on a train and be in Philly in an hour for all the city offers.
Historically, Philadelphia is one of the biggest attractions in the US. You've got Independence Hall, the Liberty Bell, the Betsy Ross House, the Constitution Center, Christ's Church, Elfreth's Alley, and many other colonial attractions. But that's only the start...