Clifton Rocks Railway, Picture 1, Bristol, England (UK), 2012

This is the entrance to the Clifton Rocks Railway's lower station. This was a funicular railway that operated from 1893 until 1936 between Clifton and the Avon Harbour at the bottom. The entire railway was underground, in the mountainside. Ever since its closure, it has remained a tourist attraction, and occassionally toured with qualified guides. It's actually been a tourist attraction as an abandoned railway for far longer than it was an active railway. In recent years, the trust that preserves its remains has considered restoring it to operation, but a recent price estimate was around 15 million pounds.