This underground marvel is integral to an 80-kilometer high-speed rail ... Pretoria, and OR Tambo International Airport. Along its route, the tunnel accommodates three key underground stations ...

The Gautrain project in South Africa has redefined infrastructure on the continent, featuring Africa's longest underground tunnel, an impressive 15.4-kilometer stretch that connects key locations in ...

One of which is a huge £3billion train line connecting two huge cities ... with the nation's capital Pretoria. The project has been around for a while now, having been first announced in 2000 ...