2 Miles away, the local park railroad. 1 mile of 2 foot gauge track. 3 locomotives, 10 coaches. When I was employed by the county park's department, I was the primary locomotive engineer, track worker, manager, jack of all trades.
7/20/13. Yours truly, with my favorite locomotive #281, in bound. This was my last day on the railroad, and this is me returning with my very last revenue run. This is what got me into trains. I've grown up hearing the whistles from home. #281 doesn't seem to get the same treatment as I used to give it. It is now rarely used. With the preference to use the two newer engines, #281 rarely sees the light of day and when it does, it usually only pulls one or two trains before going back inside. An excellent engine. Rode well, accelerated very well, it would pull a building down. I always kept it washed, waxed - gleaming. Of course, a fresh set of American flags occasionally as well.
The ex-B&O (Now CSX) Metropolitan line is a short drive away, depending on where exactly you go. Here is D765, the local trash train, heading west.
The National Capital Trolley Museum is about a half hour away and they have a very scenic 1.5 mile run through a park, along a creek, woods, etc.
The Smithsonian on the Mall in Washington houses several historic locomotives and cars.
About an hour away, I occasionally volunteer on the Walkersville Southern Railroad.
WMATA is also about a 15 minute drive down the road.
Several abandoned trolley lines in the area as well. Some have been abandoned for 80-90 years or less. Lots of little things from them still survive. One of the trolley ROWs runs right through the campus of my employer and supposedly there are still some rails in the woods on our campus but I haven't explored that.
Also in my are is the B&O's Georgetown Branch. I was a bit late to remember the branch in operation but there are many wonderful tours and photos out there. It also terminates near my employer and it is now a very popular trail. Lots of former B&O remnants from it. B&O Emblems stamped into concrete bridge piers, rails in concrete, tunnels, bridges, etc. Walking the trail, you can still see track, scrapped rail car pieces, etc. The Dalecarlia tunnel is just beautiful, etc.