I grew up in Southern California and one of my favorite places was the California Museum of Science and Industry (now California Science Center) in Exposition Park in Los Angeles. Just about everything there was scratch built and there were a lot of interactive exhibits. One of my favorites (no surprise) was the model railroad exhibit. It was located around an upper level of a large room in the museum. In the early days, you had to pay 10 cents to see the trains, but later there was no charge. The exhibit was removed sometime in the 1990's. The layout was built in 1951 by an architectural firm and for a while was run by the Troxel brothers, who had a model railroad shop in Los Angeles (and I believe were also involved with the Citrus Empire model railroad club). It ran continuously when the museum was open. I miss that layout.
While trolling around TrainLife's out-of-print magazine collections, I stumbled across this article.
Looking back, that was one of the best ways to do an around the walls layout. It wasn't that deep, but the well done use of forced perspective and curved backdrops made it look a lot deeper. Thought it would be nice to share with the rest of you.