Two glass plate negatives from the 1937 Exposition Internationale in Paris, taken from roughly the same position, give a window into the history of the Expo, as well as some of the underlying tensions that were coming to a boil in advance of the Second World War.
Series: Wookey Hole Caves
First used by man in the Paleolithic era, the interconnected Wookey Hole Caves stretch far into the earth, through vast, flooded chambers created by the underground River Axe. Used as a Doctor Who shooting location in "Revenge of the Cybermen",
One-shot #20: A 75 in action at Verdun
A look at the Canon de 75 mm Modele 1897, in use for almost a century, and the central role it played in defending the Meuse Heights in 1916 at the Battle of Verdun.
One-shot #19: A Cross at Ablain
A simple cross sits above a pile of German corpses - in a 1,000-year-old village that was completely leveled in a year, and finally came to be home to the largest military cemetery in France.
Series: Blue John Caverns
Explore the caves that inspired one of Sir Arthur Conan Doyle's horror stories in 3D, through VistaScreen's series of 10 stereoviews.
Remembrance Day: 100 Years, 100 Photos
Today, on the centenary of the Great War's effective end with the 11 a.m. Armistice, I present 100 stereographic (and 2D) photographs from a soldier's-eye point of view. Lest we forget.
One-shot #7: TranchĂ©e des BaĂ¯onnettes, Verdun
The TranchĂ©e des BaĂ¯onnettes - where 21 men of the 137th Infantry's 3 Company were supposedly buried alive, with only their bayonets poking out above the earth - was photographed after it was excavated during the planning phases of the 1920 monument built on the site.
Alexander O. Fasser: An American Surgeon in Paris
An American surgeon left for France in October 1915, returning six months later with stories, knowledge, a sense of horror - and about 500 Great War stereoviews, taken by him with a camera he bought while there and quickly learned to use quite well.
Wilfred Owen: Anthem for a Doomed Poet
One hundred years ago today, Wilfred Owen, a Lieutenant in the 2nd Manchesters - and an as-yet unknown poet - fell to German guns in the crossing of the Sambre-Oise Canal in the Second Battle of the Sambre. Here's a brief account of the final three years of his life, with 3D photographs that show the gritty reality of the Great War.

