The Victorians loved to use descriptive, poetic language. Many of them who had the money for a really nice house even named their homes. They also named photographs, and the first picture here was taken by B.W. Kilburn.
He called it “The Surging Sea of Humanity“. This is a stereoscope, which is a really neat invention that was peculiar to the Victorian era. You need a stereoscope viewer to combine the two photos and get the full 3D effect.
The picture is an oddity for many reasons. Most photographs from this era are posed, formal, and serious.