The term "Historic Train" refers to trains that have significant historical value, often preserved for educational and tourism purposes. These trains can include vintage steam locomotives, passenger cars, and freight trains that played a crucial role in the development of rail transport. Many historic trains are restored to their original condition and operate on special routes, allowing visitors to experience travel as it was in the past. Historic trains are often part of museums or heritage railways, where they serve to educate the public about the history of railroads and their impact on society. Examples include the Union Pacific Big Boy, one of the largest steam locomotives ever built, and the Orient Express, famous for its luxurious service. These trains not only showcase engineering marvels but also evoke nostalgia for a bygone era of travel.