The Hidden New York Marble Cemetery, One of NYC's Oldest - Untapped New York

New York Marble Cemetery, which was incorporated in 1831, was New York City's first non-sectarian burial place open to the public.

https://untappedcities.com/2022/06/23/hidden-new-york-marble-cemetery/?mc_cid=b5a4da9318&mc_eid=aa81131ba1