S3·E4 – Trans-Caucasus Railway
2016-11-21 • 45 min
Chris Tarrant travels on the historically Soviet Trans-Caucasus Railway, beginning in the Azerbaijani city of Baku before exploring the Geogian capital Tbilisi's vintage metro system, then a mountain rail bridge designed by Eiffel, and finally a tunnel reputed to be held together with egg yolk.
