RTD Light Rail train 264 runs into a bright sunrise in Centennial, Colorado.

RTD Light Rail train 311 runs on the F-Line in Centennial, Colorado as the sunrise crests the horizon.

RTD Light Rail train 339 passes a Canadian Pacific grain train in lower downtown, Denver.

The morning sky is on fire as RTD light rail train 332 Light Rail runs through Centennial, Colorado.

A pair of Jubilee Line 1996 stock units at Kilburn,North London,with a Stratford to Stanmore service.

Set 102 heads a Docklands Light Railway service crossing the water between Heron Quays and Canary Wharf in London.

A frosty RTD light rail train #225 pulls into the Oxford Street Station as it heads south towards Littleton, Colorado.

RTD light rail train #204 kicks up the snow as it travels 55 MPH between stations in Englewood, Colorado.

RTD light rail train #216 heads towards Denver on the branch that connects Englewood, Colorado with downtown's Union Station.

RTD Light Rail Train 225 meets a northbound Canadian National freight as it pulls into the Oxford Station in Englewood, Colorado.

A fiery sunrise covers Denver RTD's Light Rail train #337 as it arrives at the Station in Lone Tree, Colorado.

A dynamic sunrise reflects off the side of RTD Light Rail train 335 as it leaves the Lone Tree station for the Union Station Depot in downtown Denver, Colorado.

An amazing sunrise greeted the riders of the light rail train headed by RTD 238. The train was getting ready to pull into the Lone Tree City Center Station on the 'R' Line.

RTD of Denver #278 meets a passing light rail train at the historic bridges built in 1908 to span the Cherry Creek.

Sun Link light rail vehicle cruises through Tuscon.