This is № 415 of Pilentum's model railroad videos. This model railway layout is based on the Tarrant Valley Railway in Dorset, United Kingdom. The layout depicts the railway line as it was during the 1920’s.
This is № 411 of Pilentum's model railroad videos. How to build a small model railroad layout in HO scale? Carlo Viganò has solved this model railroading question with his dreamlike layout, which is called Plastico Ferroviario Vallecasanuova.