Take the small train and watch the autumn Shargan 8 line in Serbia. An ancient train line now leaves three times a day. The small train has a total of 2 hours. You can see the autumn leaves in the mountains. There will be a few stops in the middle of the autumn leaves. Tips: It is colder in autumn at night. To make a small train, you have to bring a coat to stay and take pictures for about 5-15 minutes. Pay attention to the stay time of each station. It is easy to buy a ticket at 4 o'clock in the evening. If you don't have a ticket, you can buy a station ticket and get on the small train.