If you like cemeteries Rock Creek is a good place.
Not knowing exactly where you are in the area, Baldwin Memorial United Methodist Church near Crownsville, MD, has a nice little cemetery with some old headstones. :
And if you ever get to London, Highgate Cemetery is *very* interesting and photogenic.:
http://www.highgate-cemetery.org/
I was there many years ago. Spooky even in the daytime.
I’m way out in W.MD so Crownsville is a strecth but not impossible.
Highgate?
Oh, how I *wish*!
Alas, airlanes mortify me so my creepy ramblings are confined to the US.
You should see my Garmin GPS.
On it is every cemetery within a 200 mile radius.
If himself uses it to get somewhere, the voice starts shrieking “turn left! turn left!” [or whatever] every 10 minutes or so because we’re getting near one of the hundreds of cemeteries on the list.