Monmouth Battle Field State Park,

One of the largest battles of the American Revolution took place here. I visited here several years ago, and the property is large and nice to walk around, but the best thing about this place is to watch the movie in visitor's center. This is a must. The movie is great, but the ending is the best thing you will see at this place. Don't miss it.

https://www.state.nj.us/dep/parksandforests/parks/monbat.html

https://www.visitnj.org/nj-attractions/monmouth-battlefield-state-park