The Arrábida bridge, Porto, Portugal, built in 1963, is a splendid example of the modern architecture.
A story behind: This is another thing that I am recently very interested in: slow shutter speed - long exposure photos.
The fast moving clouds on the slow shutter speed of 48 seconds make an image more dynamic.
Gear: Nikon D700. Nikkor 16-35 mm. Polarizer. 10 ND-Stop.
Shutter speed: 48 sec
Exposure bias: +0,3 EV
Focal Length: 17 mm
Place taken: Porto, Portugal.