By Murat Tanyel | TrekEarth

The Castil­lo de San Cristóbal is a for­mer Span­ish fort in San Juan, Puer­to Rico. It was built by Spain to pro­tect against land based attacks on the city of San Juan. It is part of San Juan Nation­al His­toric Site.

Castil­lo de San Cristóbal is the largest for­ti­fi­ca­tion built by the Span­ish in the New World. When it was fin­ished in 1783, it cov­ered about 27 acres of land and basi­cal­ly wrapped around the city of San Juan. Entry to the city was sealed by San Cristóbal’s dou­ble gates. After close to one hun­dred years of rel­a­tive peace in the area, part of the for­ti­fi­ca­tion (about a third) was demol­ished in 1897 to help ease the flow of traf­fic in and out of the walled city.

This was a dif­fi­cult pho­to. If I had used a flash, I would have blown out the walls of the tun­nel. Not using a flash guar­an­teed that the well-lit areas would be washed out. Since I applied heavy post pro­cess­ing to make it look pre­sentable, I am going to upload a copy of the orig­i­nal pho­to to the WS.