We love Atlas Obscura, and these upcoming cemetery tours, given by Allison Meier, look absolutely great:
March 10: Exploring the Glamorous Afterlife in Woodlawn Cemetery http://www.atlasobscura.com/events/glamorous-afterlife
April 28: An Afternoon in the New York Marble Cemetery http://www.atlasobscura.com/events/obscura-society-nyc-an-afternoon-at-the-new-york-marble-cemetery
In March, we'll be hosting a class on cemetery symbolism with Allison at the Brainey, and taking a tour would make for an awesome pairing.
If you want to read up on some NYC cemetery history ahead of time, check out this series Allison put together for us: