Long-distance trains, also known as intercity trains or express trains, are a popular mode of transportation for traveling between cities or regions. These trains are a fast, efficient, and environmentally-friendly way to cover long distances, offering a comfortable and convenient alternative to driving or flying. The concept of long-distance trains dates back to the early 19th century when the first steam-powered locomotive was invented. Since then, these trains have evolved to become an integral part of public transportation systems around the world.