This is the unusual design of the central staircase in the old Pinal County Courthouse. The landing a little more than half way up the splits to separate staircases going up each side, creating what looks to me like an angel's wings from this view from the front door.
The wood for this staircase was shipped by rail from the California redwood country in the 1890's.
This week we have photos of Ronda, Spain, posted on our Viva la Voyage travel photo site. Ronda is a charming town that is perched on the edge of a ravine.