After entering the Vatican Museum, I saw this gorgeous spiral staircase with a Christmas tree at the bottom. It was Christmas Eve after all.
Nikon D800, AF-S Zoom-Nikkor 14-24mm, f/2.8G ED, ISO 100, 22m, f/2.8, 1/4s
As I swapped the 24-70mm lens for the 14-24mm lens, I dropped the lens cap on the floor, which ordinarily would not be a problem. However, in this instance, the lens cap rolled, rolled, and rolled all the way down to the bottom of the staircase. By the time I reached the bottom of the staircase, someone had already picked up my lens cap and left it for me on the handrail. Quite embarrassing, but I was welcomed with this view on the way back up.
Nikon D800, AF-S Zoom-Nikkor 14-24mm, f/2.8G ED, ISO 100, 22m, f/3.2, 1/50s