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 used Posted by Travel in Portugal on Sat, 21/12/2013 - 21:17 × Related images Modern Porto - Boa Vista shops Passeio das Virtudes - Porto Ribeira side street - Porto 199 Rua de José Falcão - Moorish Style - Porto Porto Riverside Porto Monument
