Hi I highly recommend the museum for a look into Jewish life during WW2.
They have actual videos of people who lived through various aspects of the war that was very moving. The material is very upsetting but I think we all must see this to understand what happened & so it doesn't happen again. I thought I knew a lot about the Holocaust but I learned even more here. This part of the museum alone took me 1.5 hours so I did not get a chance to see the rest.
The museum has a hefty $12 charge but is free on Wednesdays after 4pm so that is what I would recommend doing.
The other reviewer implied this is near the Staten Island ferry. Well as a native New Yorker & having worked in the Wall St area for 25 years, the walk is around 10 minutes.
Battery park is just a beautiful area with gorgeous views of the Statue & Ellis Island. There are beautifully maintained grounds in the area & it's worth it just to sit & watch the water for a while.
I would highly recommend a visit to the museum to understand the holocaust & understand Jewish life.