Just outside the Castillo San Felipe del Morro in Old San Juan, Puerto Rico is this interesting rectangular building called the Cuartel de Ballajá. It is a reconstruction of the old barracks built to house the Spanish and Puerto Rican army in the 1850s.
I pointed my camera up a the sky as I the flags across the courtyard caught my attention. I was glad there was blue sky but also happy with the few light, puffy clouds. I believe the odd trapezoid shape adds an unsettling but interesting feel to the image.