Glenfinnan Viaduct, 1999.

Passenger train crossing Glenfinnan Viaduct, on the West Highland Railway, by Chris Hogg, 1999. This viaduct was built from 1897 to 1901, and was the first large scale use of concrete in a British construction project since Roman days. The line linked Mallaig and Fort William. This bridge was featured in the film "Harry Potter and the Chamber of Secrets", in 2002.