Close-up view of vintage train crossing lights in Denver, Colorado, from 2015. The red lights flash rhythmically above a railroad crossing, accompanied by a ringing bell and a warning signal. This authentic 8mm-style footage captures the classic safety mechanism of a railway crossing, with the flashing lights and audible alert emphasizing caution. The scene evokes a nostalgic, Americana feel, showcasing a timeless moment of rail transport safety in an urban setting. Ideal for documentaries, historical content, or transportation-themed projects.