It took the 62-year-old electrical engineer more than 10 years to build a 350-meter (383-yard)-long narrow-gauge railway twisting through the grounds of his steads about 50 kilometers (some 30 miles) outside St. Petersburg. It has various branches, dead ends, circuit loops and even three bridges. The design of his steam train is based on a classic example from the early 20th century. Chilin built it with the help of a ...