During my visit to Dubrovnik, Croatia I came across a castle turret guarding the surrounding waters. Although I like the color version of this photograph the black and white captures the history.

Camera: Nikon D610
Lens: Tamron 24-70mm F2.8
Focal Length: 24mm
Exposure: 1/320 at F16
ISO: 100
Tripod: Mefoto Roadtrip