You should find a small graveyard in the very corner, near the fences. 30 graves, none of which can be interacted with (as far as I can tell).
However...
Listen.
I'm on PC, with ED-E and Boone with me...and I can hear faint ghostly whispers as I walk among the graves. No joke.
Neither companion has shown any awareness of danger, so this might be just a tiny Easter Egg. Could be part of an upcoming DLC (unlikely, I know), but whatever it is...it provided a little eerie moment.

(apologies if this has been posted elsewhare and is common knowledge, but I did a search and came up empty)