The Hindenburg crashed in an airfield at the Lakehurst Naval Air Station, which you can now visit on a base in New Jersey. To do so, as it is a military station, you need to register two weeks in advance, "adhere to strict security requirements", and no foreign nationals are allowed.
Atlas Obscura describes the site this way:
A simple yet powerful memorial marks the site of the crash. A cement outline in the shape of the Hindenburg stretches across the airfield in the spot where the airship crash-landed in flames. The site was declared a Registered National Historic Landmark in 1961.
I want to know what are the steps to register for a visit?