This is № 440 of Pilentum's model railroad videos. This video presents a model railway tour of an Italian modular model train layout including railroad operations with high-speed trains (“Frecciarossa”) and electric locomotives hauling very long passenger and freight trains.
This is № 419 of Pilentum's model railroad videos. Building model railway layouts is an international hobby. So even in Rome, Italy, there is a model train club, called “Gruppo Fermodellistico Tartaruga”, whose members are constructing a large modular model railway in HO scale.