Hi Guys, I am getting started in railroad modeling. I blame the habit on my 6 year old son. He asked for a train on Christmas. So, off I went in search of the perfect train. I thought >$100 was a lot for a 6 year train set. My father-in-law had the perfect solution. My son's mom had got a HO scale train 36 years ago on Christmas and her father still had the set. We bought some track and a new controller and got the train moving. My father-in-law broke down and just gave the set to his grandson. It was pretty cool seeing my father-in-law so excited to give his grandson a gift. Maybe trains are more than just a hobby. The engine quit after a couple of hard run days by my 6 year old. So, I bought a new engine, a model structure, trees, people, animals, etc. We needed a board to put the oval layout on. My father-in-law, myself, and son built a 6' x 5' train board. After attempting to find a place for it, I sawed it in half. So, I have two 3' x 5' train boards that are easily hung on the basement wall when not in use. I have place 3/4" foam board on top of the plywood. When we use them, I bolt the two boards together to make the original 6' x 5' train board. Now, on to my question : How would I make joint look realistic ? Would I make bridges, a tunnel, etc. ? Oh, by the way, I have spent a lot more dollars than what a new set would have cost but the fun my father-in-law, myself, and son have had cannot be bought.