The abstract should summarize the contents of the paper in short This research paper delves into the multifaceted significance of preserving railway heritage, most precisely railway lines, expanding beyond traditional considerations of material and architectural heritage. Those networks stand as historical witnesses to crucial events like the industrial revolution, colonization, and globalization, contributing to the shaping of historical landscapes, global demography, and communities. The study explores the history of the Rails-to-Trails movement, originally aimed at promoting a healthy lifestyle but evolving into a global phenomenon that preserves historical landscapes, reconnects rail towns, and fosters slow tourism. Examining the reuse of abandoned urban rails into linear parks, the paper focuses on well-known examples like New York's High Line, addressing both its successes and limitations. Alternative ideas, such as those along the Petite Ceinture, highlight diverse approaches to repurposing urban rails and emphasize the importance of community involvement in decision-making processes. The paper underscores the challenge of balancing conservation, sustainability, and economical interests, emphasizing that well-integrated greenways present an eclectic solution for the future of railway heritage, harmonizing history, landscape, and contemporary needs.