Box Tunnel

Box Tunnel is a historic railway tunnel located near Bath, England, built in 1841 for the Great Western Railway. It spans approximately 1.8 miles (2.9 kilometers) through the hills, allowing trains to pass through a mountain ridge efficiently. Its construction was a major engineering achievement of the Victorian era, featuring a gradual curve and a sandstone lining. The tunnel improved transportation by providing a more direct route for trains, reducing travel time. Today, it remains in use for passenger services and is notable for its impressive scale and historical significance in railway engineering.