File:Box Tunnel No.2 Portal.jpg - Wikimedia Commons
Middlehill Tunnel - Box People and Places
Light at the end of the tunnel: sun shines for Brunel's birthday | Engineering | The Guardian
Colour tinted photo of Box Tunnel, c.1920s available as Framed Prints, Photos, Wall Art and Photo Gifts #10880177
Box Tunnel - Isambard Kingdom Brunel
Box tunnel brunel hi-res stock photography and images - Alamy
Closely-guarded secret | Mike Higginbottom Interesting Times
Light at the end of the tunnel: sun shines for Brunel's birthday | Engineering | The Guardian
Mystery of Isambard Kingdom Brunel's Box Tunnel near Bath may finally be solved | Daily Mail Online
Box Tunnel 27463_016 available as Framed Prints, Photos, Wall Art and Photo Gifts #11949051
Box Hill Tunnel on the Great Western Railway in Wiltshire, UK Stock Photo - Image of countryside, architecture: 229171302
Showing train for scale - Picture of Box Tunnel - Tripadvisor
Network Rail on Twitter: "IK Brunel's Box Tunnel was the longest railway tunnel ever built at the time of its opening in 1840. https://t.co/Q3SyqpsjoQ" / Twitter
Box Tunnel - Wikipedia
Box Tunnel - All You Need to Know BEFORE You Go (with Photos)
Sunrise at Box Tunnel on Brunel's birthday / Adam Scott / Architectural Photography
Overgrown vegetation has 'obliterated' view of Box Tunnel from viewing platform - Bath Chronicle
Box Tunnel - Wikipedia
Report - - Box Tunnel East Portal (Sidings to Tunnel Quarry and CAD), Wiltshire - February 2015 | Underground Sites | 28DaysLater.co.uk
Box Tunnel time-lapse video of track lowering and renewals 18 July - 1 September 2015 - YouTube
The Box Tunnel - Brunel builds the impossible - Network Rail
Brunel's sister may hold key to 180-year-old Box Tunnel sunrise mystery | New Civil Engineer
Box Tunnel - YouTube
