I came here once on a school field trip in Middle School but I didn’t fully appreciate it until now as an adult. There is something very special about this land, you will literally feel goose bumps travel up your arms here. Definitely get a guided tour to experience everything. At the visitor’s center they have a movie narrated by Morgan Freeman that’s a great place to start. There aren’t many places in the U.S. that shed as much reverence for our history as this one.