© All Rights Reserved The 1876 Dona Maria Pia bridge in Porto. Designed by Gustave Eiffel, the bridge is the only one of the six bridges spanning the Douro that is not usedRelated images Castelo do Queijo - Matosinhos - Porto Torre dos Clérigos detail Igreja de Santo António dos Congregados - Porto Porto's Neoclassical Hospital McDonald's in Porto Porto Cathedral Square
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