Carlisle, England - April 1, 2013: A Class 66 diesel locomotive hauls a freight train across Arten Gill viaduct, high on the hills above Dentdale in England's Yorkshire Dales National Park.
The view north from Snowdon mountain to Llanberis village and lake, with the Snowdon Mountain Railway tracks descending the ridgeway, in Snowdonia National Park, Wales.
Boston, Massachusetts - June 25, 2006: A Boston 'T' subway commuter train crosses the Longfellow Bridge over the Charles River while Downtown Boston is shrouded in fog.
