PNR Centennial Tunnel — Local services in Aringay

Great piece of history, but not much to look at, here's some facts about the tunnel.

Centennial Tunnel, La Union 500 meters long, build in 1913 during the American regime. Intended for the trains of the Philippine National Railways (PNR) bound for Baguio City, it was later abandoned by the Commonwealth Govenment because of the impending...

I'm not good about history so I don't know why it was there. We just found it in google map. For better promotion, they could've add a simple description about the place since nobody is...

When I was fourth year in high school I went to that place, which distance is about more or less one kilometer away...