Spiral Stair

Una luz a punto y un perfecto encuadre, Carlos ... una muy buena foto. Saludos.

Carlos I love the light radiating from the center and just catching the detail on the outer periphery of the photo. 

I like the mystery of the dark areas around this staircase.

I'd say this is a kind of urban nautilus.

Warm colors, excellent composition, it captures the sight magically.

Congratulations!