Spiral staircase to the front desk

Spiral staircase to the front desk
This spiral staircase connects the counter in the basement with the front desk on the surface. I suppose this would have been useful for conveying medical records back and forth.

Image Metadata

Date Captured

Camera

NIKON D3100

Aperture

ƒ/5.6

Shutter Speed

1/60 sec

Focal Length

18 mm

ISO

400

Exposure

−1 EV