Youtube User "Boomer Dioramas" has a whole host of really fantastic videos showing off the fun that can be had with a very limited amount of space. His modeling and insights must not be missed!
Additionally, a good friend in the hobby who has shared a TON of information with me concerning the POVA over the years has shared a really great video with us showing off his own efforts at modeling the little railroad along the Pend Orelle. Check out the rest of his videos on the day-to-day operations of his dairy farm as well! Fascinating stuff!