Day 7. Ist National Park

Main feature today was Mammoth Caves National Park. The park covers 30,000 acres and has the longest system of connected caves in the world.  There have been tours of caves there for over 130 years. I choose the shortest tour. The tour with only 12 stairs.  There were about 60 extra stairs as an optional part.  I quietly declined that extra option.  In spite of it being the easiest I found it uncomfortable.  I did not like being so far underground. About 150 feet.  I am glad I did it but can't say it was my favorite activity.  I bought my National Park Passport book and collected my first stamp. 
In Nashville I discovered they have a full scale replica of the Parthenon.  This was created as part of a world's fair and now is an art museum.  Country music stuff is everywhere.   The Titans stadium is prominent along the river.  Historic country music venues are notable.  Both the historic clubs and the recording studios within Music Row. Photo is Country Music Hall of Fame.  A huge new Music City Convention Center is under construction right next door.