Kinsol Trestle, Shawnigan Lake, BC.
MP #4, Grand Canyon Railway, Arizona 2013.
A railroad trestle crosses the Kentucky River adjacent to the distillery.  No longer in use, it used to carry most of the rail traffic through this area.
Vintage trestle bridge remnant
James River Rail Bridge -- RVA
The Art Nouveau style of the James River Railway Bridge speaks of a time when railroads the #1 form of transportation. Not merely a utilitarian rail trestle getting you from point A to point B but a statement of permanence and grandeur.

The now CSX double track concrete bridge was built jointly by the Atlantic Coast Line Railroad and Richmond, Fredericksburg and Potomac Railroad in 1919.
April Tunnel Trestle
See photo in original gallery.