branching out from indiana
 

Going from pa to INdiana to visit relatives for a few days. What areas could we visit in surrounding states adding up to a week to our return to pa. I thought of Mt Rushmore but thats 16+hours west of indy.

The possibilities east of Indiana are Ohio ( Rock & Roll Hall of Fame?) western new York state (Niagara Falls?), West Virginia (?), Kentucky (Mammoth Cave?) or Maryland (Baltimore Inner Harbor).
When is this trip and who is the "we"?