The cave was discovered accidentally in 1906 and was for a time developed as a commercial show cave.

It has also led to him working on more commercial shows - and that's been a wrench for a professional loner.

Each commercial showed a slightly different perspective on the events, and each ended with a cryptic weblink.

The commercials showed selected little league baseball players acting out some of baseball's greatest moments in history.

However, the rail operators see this as a medium to earn advertising revenue from commercials shown on these displays.