Taken from the Railflix documentary Great American Train Adventures.

The Chattanooga Southern was a massive world class layout that spanned two long rooms.

The Chattanooga Southern was a massive world class layout that spanned two long rooms.

Here's an example of the highly-detailed scenery; a train passes along the edge of a city.

Here’s an example of the highly-detailed scenery; a train passes along the edge of a city.

Another train emerges from one of the many tunnels and passes a boat churning down a river.

Another train emerges from one of the many tunnels and passes a boat churning down a river.

Here are several of the many highly-detailed bridges & trestles that span valleys & gorges.

Here are several of the many highly-detailed bridges & trestles that span valleys & gorges.

Go behind the scenes for maintenance and see how this incredible model RR was built.

Go behind the scenes for maintenance and see how this incredible model RR was built.

Climb up into the control room to see how all of the trains are routed along 5,000 feet of tracks.

Climb up into the control room to see how all of the trains are routed along 5,000 feet of tracks.