This image shows people walking along the top of the masonry wall that defended the water battery, at Fort Marion. To the left, in the shadow of the fort's wall, the hot shot oven can be seen. In the background, on top of the northeast bastion, the two story watch tower can be seen. There is a metal staircase leading to the second floor of the tower. Fort Marion is also known as Castillo de San Marcos. The fort is on the National Register of Historic Places, and is a National Monument.
Stereoview courtesy of Douglas Hendriksen. Image retouched and converted to anaglyph in 2011 by the Florida Center for Instructional Technology at the University of South Florida, Tampa, Florida. View this image using 3D glasses with the red lens over the left eye and the blue (cyan) lens over the right eye. This image is also available as a standard 2D photograph.