Dom Luís I Bridge from Vila Nova de Gaia

The best-known view of the Dom Luís I Bridge is taken from the Vila Nova de Gaia bank of the Douro River, opposite Porto in northern Portugal. From the Cais de Gaia quay, the Jardim do Morro and the upper terraces near the Serra do Pilar monastery, the double-deck iron arch frames the stacked, colourful houses of Porto's Ribeira district, the Sé Cathedral on the hill and the red-roofed city beyond. The bridge was completed in 1886 by Théophile Seyrig, a pupil and partner of Gustave Eiffel, and the arch spans about 172 metres. At river level, the Gaia quay offers a straight-on composition with moored rabelo boats, the port-wine lodge signs and the bridge reflected in the water. Higher up, the Jardim do Morro lawn and the top of the Gaia cable car station give a wider angle that includes the whole skyline, the metro crossing the upper deck and the sweep of the river. Golden hour brings warm tones to the Ribeira facades, and the blue hour after sunset adds illuminated windows and bridge lights to deep blue sky, which many photographers consider the finest moment. Twilight combines both, but the light changes quickly and a tripod helps; the quay can be crowded, so tripods should be used with courtesy. Sunset at Jardim do Morro attracts large crowds and a lively local scene with musicians, so a position should be taken at least 30 minutes early. Early morning has softer light and few people. The view is free and open at all times, and cafes along the quay offer places to wait. Allow an hour for photography.